// Copyright (c) 2013 GitHub, Inc.
// Use of this source code is governed by the MIT license that can be
// found in the LICENSE file.

#include "shell/browser/electron_browser_client.h"

#if BUILDFLAG(IS_WIN)
#include <shlobj.h>
#endif

#include <memory>
#include <string_view>
#include <utility>

#include "base/base_switches.h"
#include "base/command_line.h"
#include "base/debug/crash_logging.h"
#include "base/environment.h"
#include "base/files/file_path.h"
#include "base/files/file_util.h"
#include "base/memory/self_deleting.h"
#include "base/no_destructor.h"
#include "base/notreached.h"
#include "base/path_service.h"
#include "base/process/process_metrics.h"
#include "base/strings/escape.h"
#include "base/strings/string_util.h"
#include "chrome/browser/browser_process.h"
#include "chrome/common/chrome_paths.h"
#include "chrome/common/chrome_switches.h"
#include "chrome/common/chrome_version.h"
#include "components/embedder_support/user_agent_utils.h"
#include "components/net_log/chrome_net_log.h"
#include "components/network_hints/common/network_hints.mojom.h"
#include "content/browser/keyboard_lock/keyboard_lock_service_impl.h"  // nogncheck
#include "content/browser/web_contents/web_contents_impl.h"  // nogncheck
#include "content/public/browser/browser_main_runner.h"
#include "content/public/browser/browser_task_traits.h"
#include "content/public/browser/client_certificate_delegate.h"
#include "content/public/browser/login_delegate.h"
#include "content/public/browser/navigation_throttle_registry.h"
#include "content/public/browser/overlay_window.h"
#include "content/public/browser/render_frame_host.h"
#include "content/public/browser/render_process_host.h"
#include "content/public/browser/render_view_host.h"
#include "content/public/browser/security_principal.h"
#include "content/public/browser/service_worker_version_base_info.h"
#include "content/public/browser/site_instance.h"
#include "content/public/browser/tts_controller.h"
#include "content/public/browser/tts_platform.h"
#include "content/public/browser/url_loader_request_interceptor.h"
#include "content/public/browser/weak_document_ptr.h"
#include "content/public/common/child_process_id.h"
#include "content/public/common/content_descriptors.h"
#include "content/public/common/content_paths.h"
#include "content/public/common/content_switches.h"
#include "content/public/common/url_constants.h"
#include "crypto/crypto_buildflags.h"
#include "electron/buildflags/buildflags.h"
#include "electron/fuses.h"
#include "extensions/browser/extension_navigation_ui_data.h"
#include "extensions/common/extension_id.h"
#include "ipc/constants.mojom.h"
#include "mojo/public/cpp/bindings/binder_map.h"
#include "mojo/public/cpp/bindings/self_owned_associated_receiver.h"
#include "net/ssl/ssl_cert_request_info.h"
#include "net/ssl/ssl_private_key.h"
#include "printing/buildflags/buildflags.h"
#include "services/device/public/cpp/geolocation/geolocation_system_permission_manager.h"
#include "services/device/public/cpp/geolocation/location_provider.h"
#include "services/network/public/cpp/features.h"
#include "services/network/public/cpp/is_potentially_trustworthy.h"
#include "services/network/public/cpp/network_switches.h"
#include "services/network/public/cpp/originating_process_id.h"
#include "services/network/public/cpp/resource_request_body.h"
#include "services/network/public/cpp/self_deleting_url_loader_factory.h"
#include "services/network/public/cpp/url_loader_factory_builder.h"
#include "services/network/public/cpp/web_sandbox_flags.h"
#include "shell/app/electron_crash_reporter_client.h"
#include "shell/browser/api/electron_api_app.h"
#include "shell/browser/api/electron_api_crash_reporter.h"
#include "shell/browser/api/electron_api_protocol.h"
#include "shell/browser/api/electron_api_web_contents.h"
#include "shell/browser/api/electron_api_web_request.h"
#include "shell/browser/badging/badge_manager.h"
#include "shell/browser/bluetooth/electron_bluetooth_delegate.h"
#include "shell/browser/child_web_contents_tracker.h"
#include "shell/browser/electron_api_ipc_handler_impl.h"
#include "shell/browser/electron_api_sw_ipc_handler_impl.h"
#include "shell/browser/electron_autofill_driver_factory.h"
#include "shell/browser/electron_browser_context.h"
#include "shell/browser/electron_browser_main_parts.h"
#include "shell/browser/electron_child_process_host_flags.h"
#include "shell/browser/electron_navigation_throttle.h"
#include "shell/browser/electron_plugin_info_host_impl.h"
#include "shell/browser/electron_speech_recognition_manager_delegate.h"
#include "shell/browser/electron_web_contents_utility_handler_impl.h"
#include "shell/browser/font_defaults.h"
#include "shell/browser/hid/electron_hid_delegate.h"
#include "shell/browser/javascript_environment.h"
#include "shell/browser/login_handler.h"
#include "shell/browser/media/media_capture_devices_dispatcher.h"
#include "shell/browser/native_window.h"
#include "shell/browser/net/network_context_service.h"
#include "shell/browser/net/network_context_service_factory.h"
#include "shell/browser/net/proxying_url_loader_factory.h"
#include "shell/browser/net/proxying_websocket.h"
#include "shell/browser/net/system_network_context_manager.h"
#include "shell/browser/network_hints_handler_impl.h"
#include "shell/browser/notifications/notification_presenter.h"
#include "shell/browser/notifications/platform_notification_service.h"
#include "shell/browser/preload_code_cache.h"
#include "shell/browser/preload_script.h"
#include "shell/browser/protocol_registry.h"
#include "shell/browser/renderer_startup_data.h"
#include "shell/browser/serial/electron_serial_delegate.h"
#include "shell/browser/session_preferences.h"
#include "shell/browser/tracing/electron_tracing_delegate.h"
#include "shell/browser/ui/devtools_manager_delegate.h"
#include "shell/browser/usb/electron_usb_delegate.h"
#include "shell/browser/web_contents_permission_helper.h"
#include "shell/browser/web_contents_preferences.h"
#include "shell/browser/webauthn/electron_authenticator_request_client_delegate.h"
#include "shell/browser/webauthn/electron_authenticator_request_delegate.h"
#include "shell/browser/window_list.h"
#include "shell/common/api/api.mojom.h"
#include "shell/common/application_info.h"
#include "shell/common/asar/asar_util.h"
#include "shell/common/electron_paths.h"
#include "shell/common/logging.h"
#include "shell/common/options_switches.h"
#include "shell/common/platform_util.h"
#include "shell/common/plugin.mojom.h"
#include "shell/common/thread_restrictions.h"
#include "shell/common/web_contents_utility.mojom.h"
#include "third_party/blink/public/common/associated_interfaces/associated_interface_registry.h"
#include "third_party/blink/public/common/loader/url_loader_throttle.h"
#include "third_party/blink/public/common/renderer_preferences/renderer_preferences.h"
#include "third_party/blink/public/common/tokens/tokens.h"
#include "third_party/blink/public/common/web_preferences/web_preferences.h"
#include "third_party/blink/public/mojom/badging/badging.mojom.h"
#include "third_party/blink/public/mojom/devtools/console_message.mojom.h"
#include "ui/base/resource/resource_bundle.h"
#include "ui/native_theme/native_theme.h"
#include "v8/include/v8.h"

#if BUILDFLAG(USE_NSS_CERTS)
#include "net/ssl/client_cert_store_nss.h"
#include "shell/browser/electron_crypto_module_delegate_nss.h"
#elif BUILDFLAG(IS_WIN)
#include "net/ssl/client_cert_store_win.h"
#elif BUILDFLAG(IS_MAC)
#include "net/ssl/client_cert_store_mac.h"
#elif defined(USE_OPENSSL)
#include "net/ssl/client_cert_store.h"
#endif

#if BUILDFLAG(ENABLE_BUILTIN_SPELLCHECKER)
#include "chrome/browser/spellchecker/spell_check_host_chrome_impl.h"  // nogncheck
#include "chrome/browser/spellchecker/spell_check_initialization_host_impl.h"  // nogncheck
#include "components/spellcheck/common/spellcheck.mojom.h"  // nogncheck
#endif

#if BUILDFLAG(OVERRIDE_LOCATION_PROVIDER)
#include "shell/browser/fake_location_provider.h"
#endif  // BUILDFLAG(OVERRIDE_LOCATION_PROVIDER)

#if BUILDFLAG(ENABLE_ELECTRON_EXTENSIONS)
#include "base/functional/bind.h"
#include "chrome/common/webui_url_constants.h"
#include "components/guest_view/common/guest_view.mojom.h"
#include "content/public/browser/child_process_security_policy.h"
#include "content/public/browser/file_url_loader.h"
#include "content/public/browser/web_ui_url_loader_factory.h"
#include "extensions/browser/api/mime_handler_private/mime_handler_private.h"
#include "extensions/browser/api/web_request/web_request_api.h"
#include "extensions/browser/browser_context_keyed_api_factory.h"
#include "extensions/browser/event_router.h"
#include "extensions/browser/extension_host.h"
#include "extensions/browser/extension_navigation_throttle.h"
#include "extensions/browser/extension_prefs.h"
#include "extensions/browser/extension_protocols.h"
#include "extensions/browser/extension_registry.h"
#include "extensions/browser/extensions_browser_client.h"
#include "extensions/browser/guest_view/extensions_guest_view.h"
#include "extensions/browser/guest_view/mime_handler_view/mime_handler_view_guest.h"
#include "extensions/browser/process_manager.h"
#include "extensions/browser/process_map.h"
#include "extensions/browser/renderer_startup_helper.h"
#include "extensions/browser/service_worker/service_worker_host.h"
#include "extensions/browser/url_loader_factory_manager.h"
#include "extensions/common/api/mime_handler.mojom.h"
#include "extensions/common/constants.h"
#include "extensions/common/extension.h"
#include "extensions/common/mojom/event_router.mojom.h"
#include "extensions/common/mojom/guest_view.mojom.h"
#include "extensions/common/mojom/renderer_host.mojom.h"
#include "extensions/common/switches.h"
#include "shell/browser/extensions/electron_extension_system.h"
#include "shell/browser/extensions/electron_extension_web_contents_observer.h"
#endif

#if BUILDFLAG(ENABLE_PLUGINS)
#include "chrome/browser/plugins/plugin_response_interceptor_url_loader_throttle.h"  // nogncheck
#include "shell/browser/plugins/plugin_utils.h"
#endif

#if BUILDFLAG(IS_MAC)
#include "content/browser/mac_helpers.h"
#include "content/public/browser/child_process_host.h"
#endif

#if BUILDFLAG(IS_LINUX)
#include "components/crash/core/app/crash_switches.h"  // nogncheck
#include "components/crash/core/app/crashpad.h"        // nogncheck
#endif

#if BUILDFLAG(IS_WIN)
#include "chrome/browser/ui/views/overlay/video_overlay_window_views.h"
#include "shell/browser/browser.h"
#include "ui/aura/window.h"
#include "ui/aura/window_tree_host.h"
#include "ui/base/win/shell.h"
#include "ui/views/widget/widget.h"
#endif

#if BUILDFLAG(ENABLE_PRINTING)
#include "shell/browser/printing/print_view_manager_electron.h"
#endif

#if BUILDFLAG(ENABLE_PDF_VIEWER)
#include "chrome/browser/pdf/chrome_pdf_stream_delegate.h"
#include "chrome/browser/pdf/pdf_help_bubble_handler_factory.h"
#include "chrome/browser/plugins/pdf_iframe_navigation_throttle.h"  // nogncheck
#include "components/pdf/browser/pdf_document_helper.h"             // nogncheck
#include "components/pdf/browser/pdf_navigation_throttle.h"
#include "components/pdf/browser/pdf_url_loader_request_interceptor.h"
#include "components/pdf/common/constants.h"  // nogncheck
#include "pdf/pdf_features.h"
#include "shell/browser/electron_pdf_document_helper_client.h"
#include "ui/webui/resources/cr_components/help_bubble/help_bubble.mojom.h"  // nogncheck
#endif

using content::BrowserThread;

namespace electron {

namespace {

ElectronBrowserClient* g_browser_client = nullptr;

base::NoDestructor<std::string> g_io_thread_application_locale;

base::NoDestructor<std::string> g_application_locale;

void SetApplicationLocaleOnIOThread(const std::string& locale) {
  DCHECK_CURRENTLY_ON(BrowserThread::IO);
  *g_io_thread_application_locale = locale;
}

void BindNetworkHintsHandler(
    content::RenderFrameHost* frame_host,
    mojo::PendingReceiver<network_hints::mojom::NetworkHintsHandler> receiver) {
  NetworkHintsHandlerImpl::Create(frame_host, std::move(receiver));
}

#if BUILDFLAG(ENABLE_ELECTRON_EXTENSIONS)
// Used by the GetPrivilegeRequiredBySecurityPrincipal() and
// GetProcessPrivilege() functions
// below.  Extension, and isolated apps require different privileges to be
// granted to their RenderProcessHosts.  This classification allows us to make
// sure URLs are served by hosts with the right set of privileges.
enum class RenderProcessHostPrivilege {
  kNormal,
  kHosted,
  kIsolated,
  kExtension,
};

// Copied from chrome/browser/extensions/extension_util.cc.
bool AllowFileAccess(const std::string& extension_id,
                     content::BrowserContext* context) {
  return base::CommandLine::ForCurrentProcess()->HasSwitch(
             extensions::switches::kDisableExtensionsFileAccessCheck) ||
         extensions::ExtensionPrefs::Get(context)->AllowFileAccess(
             extension_id);
}

RenderProcessHostPrivilege GetPrivilegeRequiredBySecurityPrincipal(
    const content::SecurityPrincipal& principal) {
  // Default to a normal renderer cause it is lower privileged. Extensions
  // require a privileged extension process.
  if (!principal.SchemeIs(extensions::kExtensionScheme))
    return RenderProcessHostPrivilege::kNormal;

  return RenderProcessHostPrivilege::kExtension;
}

RenderProcessHostPrivilege GetProcessPrivilege(
    content::RenderProcessHost* process_host,
    extensions::ProcessMap* process_map) {
  std::optional<extensions::ExtensionId> extension_id =
      process_map->GetExtensionIdForProcess(process_host->GetID());
  if (!extension_id.has_value())
    return RenderProcessHostPrivilege::kNormal;

  return RenderProcessHostPrivilege::kExtension;
}

const extensions::Extension* GetEnabledExtensionFromEffectiveURL(
    content::BrowserContext* context,
    const GURL& effective_url) {
  if (!effective_url.SchemeIs(extensions::kExtensionScheme))
    return nullptr;

  extensions::ExtensionRegistry* registry =
      extensions::ExtensionRegistry::Get(context);
  if (!registry)
    return nullptr;

  return registry->enabled_extensions().GetByID(effective_url.GetHost());
}

const extensions::Extension* GetEnabledExtensionFromSecurityPrincipal(
    content::BrowserContext* context,
    const content::SecurityPrincipal& principal) {
  if (!principal.SchemeIs(extensions::kExtensionScheme))
    return nullptr;

  extensions::ExtensionRegistry* registry =
      extensions::ExtensionRegistry::Get(context);
  if (!registry)
    return nullptr;

  return registry->enabled_extensions().GetByID(
      extensions::ExtensionId(principal.GetHost()));
}
#endif  // BUILDFLAG(ENABLE_ELECTRON_EXTENSIONS)

#if BUILDFLAG(IS_LINUX)
int GetCrashSignalFD(const base::CommandLine& command_line) {
  int fd;
  return crash_reporter::GetHandlerSocket(&fd, nullptr) ? fd : -1;
}
#endif  // BUILDFLAG(IS_LINUX)

void MaybeAppendSecureOriginsAllowlistSwitch(base::CommandLine* cmdline) {
  // |allowlist| combines pref/policy + cmdline switch in the browser process.
  // For renderer and utility (e.g. NetworkService) processes the switch is the
  // only available source, so below the combined (pref/policy + cmdline)
  // allowlist of secure origins is injected into |cmdline| for these other
  // processes.
  std::vector<std::string> allowlist =
      network::SecureOriginAllowlist::GetInstance().GetCurrentAllowlist();
  if (!allowlist.empty()) {
    cmdline->AppendSwitchASCII(
        network::switches::kUnsafelyTreatInsecureOriginAsSecure,
        base::JoinString(allowlist, ","));
  }
}

}  // namespace

// static
ElectronBrowserClient* ElectronBrowserClient::Get() {
  return g_browser_client;
}

// static
void ElectronBrowserClient::SetApplicationLocale(const std::string& locale) {
  if (!BrowserThread::IsThreadInitialized(BrowserThread::IO) ||
      !content::GetIOThreadTaskRunner({})->PostTask(
          FROM_HERE, base::BindOnce(&SetApplicationLocaleOnIOThread, locale))) {
    *g_io_thread_application_locale = locale;
  }
  *g_application_locale = locale;
}

ElectronBrowserClient::ElectronBrowserClient() {
  DCHECK(!g_browser_client);
  g_browser_client = this;
}

ElectronBrowserClient::~ElectronBrowserClient() {
  DCHECK(g_browser_client);
  g_browser_client = nullptr;
}

content::WebContents* ElectronBrowserClient::GetWebContentsFromProcessID(
    content::ChildProcessId process_id) {
  // If the process is a pending process, we should use the web contents
  // for the frame host passed into RegisterPendingProcess.
  const auto iter = pending_processes_.find(process_id);
  if (iter != std::end(pending_processes_))
    return iter->second;

  // Certain render process will be created with no associated render view,
  // for example: ServiceWorker.
  return WebContentsPreferences::GetWebContentsFromProcessID(process_id);
}

content::SiteInstance* ElectronBrowserClient::GetSiteInstanceFromAffinity(
    content::BrowserContext* browser_context,
    const GURL& url,
    content::RenderFrameHost* rfh) const {
  return nullptr;
}

bool ElectronBrowserClient::IsRendererSubFrame(
    content::ChildProcessId process_id) const {
  return renderer_is_subframe_.contains(process_id);
}

void ElectronBrowserClient::RenderProcessWillLaunch(
    content::RenderProcessHost* host) {
  // Remove in case the host is reused after a crash, otherwise noop.
  host->RemoveObserver(this);

  // ensure the ProcessPreferences is removed later
  host->AddObserver(this);
}

content::SpeechRecognitionManagerDelegate*
ElectronBrowserClient::CreateSpeechRecognitionManagerDelegate() {
  return new ElectronSpeechRecognitionManagerDelegate;
}

content::TtsPlatform* ElectronBrowserClient::GetTtsPlatform() {
  return nullptr;
}

void ElectronBrowserClient::OverrideWebPreferences(
    content::WebContents* web_contents,
    content::SiteInstance& main_frame_site,
    blink::web_pref::WebPreferences* prefs) {
  prefs->javascript_enabled = true;
  prefs->web_security_enabled = true;
  prefs->plugins_enabled = true;
  prefs->dom_paste_enabled = false;
  prefs->javascript_can_access_clipboard = false;
  prefs->allow_scripts_to_close_windows = true;
  prefs->local_storage_enabled = true;
  prefs->allow_universal_access_from_file_urls =
      electron::fuses::IsGrantFileProtocolExtraPrivilegesEnabled();
  prefs->allow_file_access_from_file_urls =
      electron::fuses::IsGrantFileProtocolExtraPrivilegesEnabled();
  prefs->webgl1_enabled = true;
  prefs->webgl2_enabled = true;
  prefs->allow_running_insecure_content = false;
  prefs->default_minimum_page_scale_factor = 1.f;
  prefs->default_maximum_page_scale_factor = 1.f;

  blink::RendererPreferences* renderer_prefs =
      web_contents->GetMutableRendererPrefs();
  renderer_prefs->can_accept_load_drops = false;

  ui::NativeTheme* native_theme = ui::NativeTheme::GetInstanceForNativeUi();
  prefs->in_forced_colors = native_theme->forced_colors() !=
                            ui::ColorProviderKey::ForcedColors::kNone;
  prefs->preferred_color_scheme =
      native_theme->preferred_color_scheme() ==
              ui::NativeTheme::PreferredColorScheme::kDark
          ? blink::mojom::PreferredColorScheme::kDark
          : blink::mojom::PreferredColorScheme::kLight;

  SetFontDefaults(prefs);

  // Custom preferences of guest page.
  if (auto* web_preferences = WebContentsPreferences::From(web_contents)) {
    web_preferences->OverrideWebkitPrefs(prefs, renderer_prefs);
  }
}

bool ElectronBrowserClient::WebPreferencesNeedUpdateForColorRelatedStateChanges(
    content::WebContents& web_contents,
    const content::SiteInstance& main_frame_site) const {
  const auto& prefs = web_contents.GetOrCreateWebPreferences();
  ui::NativeTheme* native_theme = ui::NativeTheme::GetInstanceForNativeUi();
  bool in_forced_colors = native_theme->forced_colors() !=
                          ui::ColorProviderKey::ForcedColors::kNone;
  blink::mojom::PreferredColorScheme preferred_color_scheme =
      native_theme->preferred_color_scheme() ==
              ui::NativeTheme::PreferredColorScheme::kDark
          ? blink::mojom::PreferredColorScheme::kDark
          : blink::mojom::PreferredColorScheme::kLight;
  return prefs.in_forced_colors != in_forced_colors ||
         prefs.preferred_color_scheme != preferred_color_scheme;
}

void ElectronBrowserClient::RegisterPendingSiteInstance(
    content::RenderFrameHost* rfh,
    content::SiteInstance* pending_site_instance) {
  // Remember the original web contents for the pending renderer process.
  auto* web_contents = content::WebContents::FromRenderFrameHost(rfh);
  const auto pending_process_id = pending_site_instance->GetProcess()->GetID();
  pending_processes_[pending_process_id] = web_contents;

  if (rfh->GetParent())
    renderer_is_subframe_.insert(pending_process_id);
  else
    renderer_is_subframe_.erase(pending_process_id);
}

void ElectronBrowserClient::AppendExtraCommandLineSwitches(
    base::CommandLine* command_line,
    int process_id) {
  // Make sure we're about to launch a known executable
#if BUILDFLAG(IS_LINUX)
  // On Linux, do not perform this check for /proc/self/exe. It will always
  // point to the currently running executable so this check is not
  // necessary, and if the executable has been deleted it will return a fake
  // name that causes this check to fail.
  if (command_line->GetProgram() != base::FilePath(base::kProcSelfExe)) {
#else
  {
#endif
    ScopedAllowBlockingForElectron allow_blocking;
    base::FilePath child_path;
    base::FilePath program =
        base::MakeAbsoluteFilePath(command_line->GetProgram());
#if BUILDFLAG(IS_MAC)
    auto renderer_child_path = content::ChildProcessHost::GetChildPath(
        content::ChildProcessHost::CHILD_RENDERER);
    auto gpu_child_path = content::ChildProcessHost::GetChildPath(
        content::ChildProcessHost::CHILD_GPU);
    auto plugin_child_path =
        content::ChildProcessHost::GetChildPath(static_cast<int>(
            ElectronChildProcessHostFlags::kChildProcessHelperPlugin));
    if (program != renderer_child_path && program != gpu_child_path &&
        program != plugin_child_path) {
      child_path = content::ChildProcessHost::GetChildPath(
          content::ChildProcessHost::CHILD_NORMAL);
      CHECK_EQ(program, child_path)
          << "Aborted from launching unexpected helper executable";
    }
#else
    if (!base::PathService::Get(content::CHILD_PROCESS_EXE, &child_path)) {
      NOTREACHED() << "Unable to get child process binary name.";
    }
    SCOPED_CRASH_KEY_STRING256("ChildProcess", "child_process_exe",
                               child_path.AsUTF8Unsafe());
    SCOPED_CRASH_KEY_STRING256("ChildProcess", "program",
                               program.AsUTF8Unsafe());
    CHECK_EQ(program, child_path);
#endif
  }

  std::string process_type =
      command_line->GetSwitchValueASCII(::switches::kProcessType);

#if BUILDFLAG(IS_LINUX)
  pid_t pid;
  if (crash_reporter::GetHandlerSocket(nullptr, &pid)) {
    command_line->AppendSwitchASCII(
        crash_reporter::switches::kCrashpadHandlerPid,
        base::NumberToString(pid));
  }

  // Zygote Process gets booted before any JS runs, accessing GetClientId
  // will end up touching DIR_USER_DATA path provider and this will
  // configure default value because app.name from browser_init has
  // not run yet.
  if (process_type != ::switches::kZygoteProcess) {
    std::string switch_value =
        api::crash_reporter::GetClientId() + ",no_channel";
    command_line->AppendSwitchASCII(::switches::kEnableCrashReporter,
                                    switch_value);
  }
#endif

  // The zygote process is booted before JS runs, so DIR_USER_DATA isn't usable
  // at that time. It doesn't need --user-data-dir to be correct anyway, since
  // the zygote itself doesn't access anything in that directory.
  if (process_type != ::switches::kZygoteProcess) {
    base::FilePath user_data_dir;
    if (base::PathService::Get(chrome::DIR_USER_DATA, &user_data_dir))
      command_line->AppendSwitchPath(::switches::kUserDataDir, user_data_dir);
  }

  if (process_type == ::switches::kUtilityProcess ||
      process_type == ::switches::kRendererProcess) {
    // Copy following switches to child process.
    static constexpr std::array<const char*, 11U> kCommonSwitchNames = {
        switches::kStandardSchemes.c_str(),
        switches::kEnableSandbox.c_str(),
        switches::kSecureSchemes.c_str(),
        switches::kBypassCSPSchemes.c_str(),
        switches::kCORSSchemes.c_str(),
        switches::kFetchSchemes.c_str(),
        switches::kServiceWorkerSchemes.c_str(),
        switches::kStreamingSchemes.c_str(),
        switches::kNoStdioInit.c_str(),
        switches::kCodeCacheSchemes.c_str(),
        switches::kExtensionSchemes.c_str()};
    command_line->CopySwitchesFrom(*base::CommandLine::ForCurrentProcess(),
                                   kCommonSwitchNames);
    if (process_type == ::switches::kUtilityProcess ||
        content::RenderProcessHost::FromID(process_id)) {
      MaybeAppendSecureOriginsAllowlistSwitch(command_line);
    }
  }

  if (process_type == ::switches::kRendererProcess) {
#if BUILDFLAG(IS_WIN)
    // Append --app-user-model-id.
    PWSTR current_app_id;
    if (SUCCEEDED(GetCurrentProcessExplicitAppUserModelID(&current_app_id))) {
      command_line->AppendSwitchNative(switches::kAppUserModelId,
                                       current_app_id);
      CoTaskMemFree(current_app_id);
    }
#endif

    if (delegate_) {
      auto app_path = static_cast<api::App*>(delegate_)->GetAppPath();
      command_line->AppendSwitchPath(switches::kAppPath, app_path);
    }

    auto env = base::Environment::Create();
    if (env->HasVar("ELECTRON_PROFILE_INIT_SCRIPTS")) {
      command_line->AppendSwitch("profile-electron-init");
    }

    content::ChildProcessId unsafe_process_id =
        content::ChildProcessId::FromUnsafeValue(process_id);
    content::WebContents* web_contents =
        GetWebContentsFromProcessID(unsafe_process_id);
    if (web_contents) {
      auto* web_preferences = WebContentsPreferences::From(web_contents);
      if (web_preferences)
        web_preferences->AppendCommandLineSwitches(
            command_line, IsRendererSubFrame(unsafe_process_id));
    }

    // Service worker processes should only run preloads if one has been
    // registered prior to startup.
    auto* render_process_host = content::RenderProcessHost::FromID(process_id);
    if (render_process_host) {
      auto* browser_context = render_process_host->GetBrowserContext();
      auto* session_prefs =
          SessionPreferences::FromBrowserContext(browser_context);
      if (session_prefs->HasServiceWorkerPreloadScript()) {
        command_line->AppendSwitch(switches::kServiceWorkerPreload);
      }
    }
  }
}

// attempt to get api key from env
std::string ElectronBrowserClient::GetGeolocationApiKey() {
  auto env = base::Environment::Create();
  std::string api_key = env->GetVar("GOOGLE_API_KEY").value_or("");
  return api_key;
}

content::GeneratedCodeCacheSettings
ElectronBrowserClient::GetGeneratedCodeCacheSettings(
    content::BrowserContext* context) {
  // TODO(deepak1556): Use platform cache directory.
  base::FilePath cache_path = context->GetPath();
  // If we pass 0 for size, disk_cache will pick a default size using the
  // heuristics based on available disk size. These are implemented in
  // disk_cache::PreferredCacheSize in net/disk_cache/cache_util.cc.
  return {true, 0, cache_path};
}

void ElectronBrowserClient::AllowCertificateError(
    content::WebContents* web_contents,
    int cert_error,
    const net::SSLInfo& ssl_info,
    const GURL& request_url,
    bool is_main_frame_request,
    bool strict_enforcement,
    base::OnceCallback<void(content::CertificateRequestResultType)> callback) {
  if (delegate_) {
    delegate_->AllowCertificateError(web_contents, cert_error, ssl_info,
                                     request_url, is_main_frame_request,
                                     strict_enforcement, std::move(callback));
  }
}

base::OnceClosure ElectronBrowserClient::SelectClientCertificate(
    content::BrowserContext* browser_context,
    int process_id,
    content::WebContents* web_contents,
    net::SSLCertRequestInfo* cert_request_info,
    net::ClientCertIdentityList client_certs,
    std::unique_ptr<content::ClientCertificateDelegate> delegate) {
  if (client_certs.empty()) {
    delegate->ContinueWithCertificate(nullptr, nullptr);
  } else if (delegate_) {
    delegate_->SelectClientCertificate(
        browser_context, process_id, web_contents, cert_request_info,
        std::move(client_certs), std::move(delegate));
  }

  return {};
}

bool ElectronBrowserClient::CanCreateWindow(
    content::RenderFrameHost* opener,
    const GURL& opener_url,
    const GURL& opener_top_level_frame_url,
    const url::Origin& source_origin,
    content::mojom::WindowContainerType container_type,
    const GURL& target_url,
    const content::Referrer& referrer,
    const std::string& frame_name,
    WindowOpenDisposition disposition,
    const blink::mojom::WindowFeatures& features,
    const std::string& raw_features,
    const scoped_refptr<network::ResourceRequestBody>& body,
    bool user_gesture,
    bool opener_suppressed,
    bool* no_javascript_access) {
  DCHECK_CURRENTLY_ON(BrowserThread::UI);

  content::WebContents* web_contents =
      content::WebContents::FromRenderFrameHost(opener);
  WebContentsPreferences* prefs = WebContentsPreferences::From(web_contents);
  if (prefs) {
    if (prefs->ShouldDisablePopups()) {
      // <webview> without allowpopups attribute should return
      // null from window.open calls
      return false;
    } else {
      *no_javascript_access = false;
      return true;
    }
  }

  if (delegate_) {
    return delegate_->CanCreateWindow(
        opener, opener_url, opener_top_level_frame_url, source_origin,
        container_type, target_url, referrer, frame_name, disposition, features,
        raw_features, body, user_gesture, opener_suppressed,
        no_javascript_access);
  }

  return false;
}

std::optional<mojo_base::BigBuffer>
ElectronBrowserClient::GetExtraCreateNewWindowReplyData(
    content::RenderFrameHost* new_window_main_frame,
    const GURL& target_url) {
  // A window.open() popup's synchronous about:blank fires
  // DidCreateScriptContext — and runs the preload — before any async push can
  // land. We've just run setWindowOpenHandler so the popup's WebContents has
  // its (possibly overridden) preload set; attach it to the reply.
  //
  // Only the about:blank document needs this. A popup that navigates
  // (window.open(url)) does not run the preload on its initial document and
  // gets a normal ElectronFrameStartup push at ReadyToCommitNavigation, so
  // building the data here for it would be pure waste.
  if (!target_url.is_empty() && !target_url.IsAboutBlank())
    return std::nullopt;

  auto* web_contents =
      content::WebContents::FromRenderFrameHost(new_window_main_frame);
  if (!web_contents)
    return std::nullopt;
  if (!WebContentsPreferences::ShouldUseSandbox(web_contents))
    return std::nullopt;
  auto* web_prefs = WebContentsPreferences::From(web_contents);

  mojom::RendererStartupDataPtr data;
  {
    ScopedAllowBlockingForElectron allow_blocking;
    data = renderer_startup_data::Build(web_contents->GetBrowserContext(),
                                        PreloadScript::ScriptType::kWebFrame);
    std::optional<base::FilePath> preload;
    if (web_prefs)
      preload = web_prefs->GetPreloadPath();
    if (preload && preload->IsAbsolute()) {
      auto ps = mojom::PreloadScriptData::New();
      ps->id = preload_code_cache::IdForWebPreferencesPreload(*preload);
      ps->file_path = preload->AsUTF8Unsafe();
      std::string contents;
      if (asar::ReadFileToString(*preload, &contents)) {
        ps->contents.assign(contents.begin(), contents.end());
        std::vector<uint8_t> cache =
            preload_code_cache::Get(ps->id, ps->contents);
        if (!cache.empty())
          ps->code_cache = std::move(cache);
      } else {
        ps->contents.clear();
        ps->error =
            "ENOENT: no such file or directory, open '" + ps->file_path + "'";
      }
      data->preload_scripts.push_back(std::move(ps));
    }
  }
  // Opaque blob — Chromium can't depend on Electron's mojom types.
  return mojo_base::BigBuffer(mojom::RendererStartupData::Serialize(&data));
}

std::optional<mojo_base::BigBuffer>
ElectronBrowserClient::GetServiceWorkerStartupData(
    content::BrowserContext* browser_context,
    const GURL& scope) {
  // Only the service-worker preload realm consumes this, and it's only created
  // when SW preloads are registered. Skip the asar reads + serialization
  // otherwise — this runs on every service worker start.
  auto* session_prefs = SessionPreferences::FromBrowserContext(browser_context);
  if (!session_prefs || !session_prefs->HasServiceWorkerPreloadScript())
    return std::nullopt;

  mojom::RendererStartupDataPtr data;
  {
    ScopedAllowBlockingForElectron allow_blocking;
    data = renderer_startup_data::Build(
        browser_context, PreloadScript::ScriptType::kServiceWorker);
  }
  return mojo_base::BigBuffer(mojom::RendererStartupData::Serialize(&data));
}

std::unique_ptr<content::VideoOverlayWindow>
ElectronBrowserClient::CreateWindowForVideoPictureInPicture(
    content::VideoPictureInPictureWindowController* controller) {
  auto overlay_window = content::VideoOverlayWindow::Create(controller);
#if BUILDFLAG(IS_WIN)
  std::wstring app_user_model_id = Browser::Get()->GetAppUserModelID();
  if (!app_user_model_id.empty()) {
    auto* overlay_window_view =
        static_cast<VideoOverlayWindowViews*>(overlay_window.get());
    ui::win::SetAppIdForWindow(app_user_model_id,
                               overlay_window_view->GetNativeWindow()
                                   ->GetHost()
                                   ->GetAcceleratedWidget());
  }
#endif
  return overlay_window;
}

void ElectronBrowserClient::GetAdditionalAllowedSchemesForFileSystem(
    std::vector<std::string>* additional_schemes) {
  const auto& schemes_list = api::GetStandardSchemes();
  if (!schemes_list.empty())
    additional_schemes->insert(additional_schemes->end(), schemes_list.begin(),
                               schemes_list.end());
  additional_schemes->push_back(content::kChromeDevToolsScheme);
  additional_schemes->push_back(content::kChromeUIScheme);
}

void ElectronBrowserClient::GetAdditionalWebUISchemes(
    std::vector<std::string>* additional_schemes) {
  additional_schemes->push_back(content::kChromeDevToolsScheme);
}

void ElectronBrowserClient::SiteInstanceGotProcessAndSite(
    content::SiteInstance* site_instance) {
#if BUILDFLAG(ENABLE_ELECTRON_EXTENSIONS)
  auto* browser_context =
      static_cast<ElectronBrowserContext*>(site_instance->GetBrowserContext());
  if (!browser_context->IsOffTheRecord()) {
    extensions::ExtensionRegistry* registry =
        extensions::ExtensionRegistry::Get(browser_context);
    const extensions::Extension* extension =
        registry->enabled_extensions().GetExtensionOrAppByURL(
            site_instance->GetSecurityPrincipal().GetDeprecatedSiteURL());
    if (!extension)
      return;

    extensions::ProcessMap::Get(browser_context)
        ->Insert(extension->id(), site_instance->GetProcess()->GetID());
  }
#endif  // BUILDFLAG(ENABLE_ELECTRON_EXTENSIONS)
}

bool ElectronBrowserClient::IsSuitableHost(
    content::RenderProcessHost* process_host,
    const content::SecurityPrincipal& security_principal) {
#if BUILDFLAG(ENABLE_ELECTRON_EXTENSIONS)
  auto* browser_context = process_host->GetBrowserContext();
  extensions::ProcessMap* process_map =
      extensions::ProcessMap::Get(browser_context);

  // Otherwise, just make sure the process privilege matches the privilege
  // required by the site.
  const auto privilege_required =
      GetPrivilegeRequiredBySecurityPrincipal(security_principal);
  return GetProcessPrivilege(process_host, process_map) == privilege_required;
#else
  return content::ContentBrowserClient::IsSuitableHost(process_host,
                                                       security_principal);
#endif
}

bool ElectronBrowserClient::ShouldUseProcessPerSite(
    content::BrowserContext* browser_context,
    const content::SecurityPrincipal& security_principal) {
#if BUILDFLAG(ENABLE_ELECTRON_EXTENSIONS)
  const extensions::Extension* extension =
      GetEnabledExtensionFromSecurityPrincipal(browser_context,
                                               security_principal);
  return extension != nullptr;
#else
  return content::ContentBrowserClient::ShouldUseProcessPerSite(
      browser_context, security_principal);
#endif
}

void ElectronBrowserClient::GetMediaDeviceIDSalt(
    content::RenderFrameHost* rfh,
    const net::SiteForCookies& site_for_cookies,
    const blink::StorageKey& storage_key,
    base::OnceCallback<void(bool, const std::string&)> callback) {
  constexpr bool persistent_media_device_id_allowed = true;
  std::string persistent_media_device_id_salt =
      static_cast<ElectronBrowserContext*>(rfh->GetBrowserContext())
          ->GetMediaDeviceIDSalt();
  std::move(callback).Run(persistent_media_device_id_allowed,
                          persistent_media_device_id_salt);
}

base::FilePath ElectronBrowserClient::GetLoggingFileName(
    const base::CommandLine& cmd_line) {
  return logging::GetLogFileName(cmd_line);
}

std::unique_ptr<net::ClientCertStore>
ElectronBrowserClient::CreateClientCertStore(
    content::BrowserContext* browser_context) {
#if BUILDFLAG(USE_NSS_CERTS)
  return std::make_unique<net::ClientCertStoreNSS>(
      base::BindRepeating([](const net::HostPortPair& server) {
        crypto::CryptoModuleBlockingPasswordDelegate* delegate =
            new ElectronNSSCryptoModuleDelegate(server);
        return delegate;
      }));
#elif BUILDFLAG(IS_WIN)
  return std::make_unique<net::ClientCertStoreWin>();
#elif BUILDFLAG(IS_MAC)
  return std::make_unique<net::ClientCertStoreMac>();
#elif defined(USE_OPENSSL)
  return ();
#endif
}

std::unique_ptr<device::LocationProvider>
ElectronBrowserClient::OverrideSystemLocationProvider() {
#if BUILDFLAG(OVERRIDE_LOCATION_PROVIDER)
  return std::make_unique<FakeLocationProvider>();
#else
  return {};
#endif
}

void ElectronBrowserClient::ConfigureNetworkContextParams(
    content::BrowserContext* browser_context,
    bool in_memory,
    const base::FilePath& relative_partition_path,
    network::mojom::NetworkContextParams* network_context_params,
    cert_verifier::mojom::CertVerifierCreationParams*
        cert_verifier_creation_params) {
  DCHECK(browser_context);
  return NetworkContextServiceFactory::GetForContext(browser_context)
      ->ConfigureNetworkContextParams(network_context_params,
                                      cert_verifier_creation_params);
}

network::mojom::NetworkContext*
ElectronBrowserClient::GetSystemNetworkContext() {
  DCHECK_CURRENTLY_ON(BrowserThread::UI);
  DCHECK(g_browser_process->system_network_context_manager());
  return g_browser_process->system_network_context_manager()->GetContext();
}

std::unique_ptr<content::BrowserMainParts>
ElectronBrowserClient::CreateBrowserMainParts(bool /* is_integration_test */) {
  return std::make_unique<ElectronBrowserMainParts>();
}

void ElectronBrowserClient::WebNotificationAllowed(
    content::RenderFrameHost* rfh,
    base::OnceCallback<void(bool, bool)> callback) {
  content::WebContents* web_contents =
      content::WebContents::FromRenderFrameHost(rfh);
  if (!web_contents) {
    std::move(callback).Run(false, false);
    return;
  }
  auto* permission_helper =
      WebContentsPermissionHelper::FromWebContents(web_contents);
  if (!permission_helper) {
    std::move(callback).Run(false, false);
    return;
  }
  permission_helper->RequestWebNotificationPermission(
      rfh, base::BindOnce(std::move(callback), web_contents->IsAudioMuted()));
}

void ElectronBrowserClient::RenderProcessHostDestroyed(
    content::RenderProcessHost* host) {
  content::ChildProcessId process_id = host->GetID();
  pending_processes_.erase(process_id);
  renderer_is_subframe_.erase(process_id);
  host->RemoveObserver(this);
}

void ElectronBrowserClient::RenderProcessReady(
    content::RenderProcessHost* host) {
  if (delegate_) {
    static_cast<api::App*>(delegate_)->RenderProcessReady(host);
  }
}

void ElectronBrowserClient::RenderProcessExited(
    content::RenderProcessHost* host,
    const content::ChildProcessTerminationInfo& info) {
  if (delegate_) {
    static_cast<api::App*>(delegate_)->RenderProcessExited(host);
  }
}

namespace {

void OnOpenExternal(const GURL& escaped_url, bool allowed) {
  if (allowed) {
    platform_util::OpenExternal(
        escaped_url, platform_util::OpenExternalOptions(), base::DoNothing());
  }
}

void HandleExternalProtocolInUI(
    const GURL& url,
    content::WeakDocumentPtr document_ptr,
    content::WebContents::OnceGetter web_contents_getter,
    bool has_user_gesture,
    bool is_primary_main_frame,
    network::mojom::WebSandboxFlags sandbox_flags) {
  content::WebContents* web_contents = std::move(web_contents_getter).Run();
  if (!web_contents)
    return;

  auto* permission_helper =
      WebContentsPermissionHelper::FromWebContents(web_contents);
  if (!permission_helper)
    return;

  content::RenderFrameHost* rfh = document_ptr.AsRenderFrameHostIfValid();
  if (!rfh) {
    // If the render frame host is not valid it means it was a top level
    // navigation and the frame has already been disposed of.  In this case we
    // take the current main frame and declare it responsible for the
    // transition.
    rfh = web_contents->GetPrimaryMainFrame();
  }

  // Sandboxed iframes without one of the appropriate sandbox-escape tokens
  // must not be able to launch external protocol handlers. This mirrors
  // chrome/browser/chrome_content_browser_client.cc; see crbug.com/1148777.
  if (!is_primary_main_frame) {
    using SandboxFlags = network::mojom::WebSandboxFlags;
    auto allow = [sandbox_flags](SandboxFlags flag) {
      return (sandbox_flags & flag) == SandboxFlags::kNone;
    };
    const bool allowed = allow(SandboxFlags::kTopNavigationToCustomProtocols) ||
                         (allow(SandboxFlags::kTopNavigationByUserActivation) &&
                          has_user_gesture);
    if (!allowed) {
      rfh->AddMessageToConsole(
          blink::mojom::ConsoleMessageLevel::kError,
          "Navigation to external protocol blocked by sandbox, because it "
          "doesn't contain any of: "
          "'allow-top-navigation-to-custom-protocols', "
          "'allow-top-navigation-by-user-activation', "
          "'allow-top-navigation', or 'allow-popups'. See "
          "https://chromestatus.com/feature/5680742077038592");
      return;
    }
  }

  GURL escaped_url(base::EscapeExternalHandlerValue(url.spec()));
  auto callback = base::BindOnce(&OnOpenExternal, escaped_url);
  permission_helper->RequestOpenExternalPermission(rfh, std::move(callback),
                                                   has_user_gesture, url);
}

}  // namespace

bool ElectronBrowserClient::HandleExternalProtocol(
    const GURL& url,
    content::WebContents::Getter web_contents_getter,
    content::FrameTreeNodeId frame_tree_node_id,
    content::NavigationUIData* navigation_data,
    bool is_primary_main_frame,
    bool is_in_fenced_frame_tree,
    network::mojom::WebSandboxFlags sandbox_flags,
    ui::PageTransition page_transition,
    bool has_user_gesture,
    const std::optional<url::Origin>& initiating_origin,
    content::RenderFrameHost* initiator_document,
    const net::IsolationInfo& isolation_info,
    mojo::PendingRemote<network::mojom::URLLoaderFactory>* out_factory) {
  content::GetUIThreadTaskRunner({})->PostTask(
      FROM_HERE,
      base::BindOnce(&HandleExternalProtocolInUI, url,
                     initiator_document
                         ? initiator_document->GetWeakDocumentPtr()
                         : content::WeakDocumentPtr(),
                     std::move(web_contents_getter), has_user_gesture,
                     is_primary_main_frame, sandbox_flags));
  return true;
}

void ElectronBrowserClient::CreateThrottlesForNavigation(
    content::NavigationThrottleRegistry& registry) {
  registry.AddThrottle(std::make_unique<ElectronNavigationThrottle>(registry));

#if BUILDFLAG(ENABLE_ELECTRON_EXTENSIONS)
  registry.AddThrottle(
      std::make_unique<extensions::ExtensionNavigationThrottle>(registry));
#endif

#if BUILDFLAG(ENABLE_PDF_VIEWER)
  registry.AddThrottle(std::make_unique<PDFIFrameNavigationThrottle>(registry));
  registry.AddThrottle(std::make_unique<pdf::PdfNavigationThrottle>(
      registry, std::make_unique<ChromePdfStreamDelegate>()));
#endif
}

content::MediaObserver* ElectronBrowserClient::GetMediaObserver() {
  return MediaCaptureDevicesDispatcher::GetInstance();
}

std::unique_ptr<content::DevToolsManagerDelegate>
ElectronBrowserClient::CreateDevToolsManagerDelegate() {
  return std::make_unique<DevToolsManagerDelegate>();
}

NotificationPresenter* ElectronBrowserClient::GetNotificationPresenter() {
  if (!notification_presenter_)
    notification_presenter_ = NotificationPresenter::Create();
  return notification_presenter_.get();
}

content::PlatformNotificationService*
ElectronBrowserClient::GetPlatformNotificationService() {
  if (!notification_service_) {
    notification_service_ = std::make_unique<PlatformNotificationService>(this);
  }
  return notification_service_.get();
}

base::FilePath ElectronBrowserClient::GetDefaultDownloadDirectory() {
  base::FilePath download_path;
  if (base::PathService::Get(chrome::DIR_DEFAULT_DOWNLOADS, &download_path))
    return download_path;
  return {};
}

scoped_refptr<network::SharedURLLoaderFactory>
ElectronBrowserClient::GetSystemSharedURLLoaderFactory() {
  if (!g_browser_process)
    return nullptr;
  return g_browser_process->shared_url_loader_factory();
}

void ElectronBrowserClient::OnNetworkServiceCreated(
    network::mojom::NetworkService* network_service) {
  if (!g_browser_process)
    return;

  g_browser_process->system_network_context_manager()->OnNetworkServiceCreated(
      network_service);
}

std::vector<base::FilePath>
ElectronBrowserClient::GetNetworkContextsParentDirectory() {
  base::FilePath session_data;
  base::PathService::Get(DIR_SESSION_DATA, &session_data);
  DCHECK(!session_data.empty());

  return {session_data};
}

std::string ElectronBrowserClient::GetProduct() {
  return "Chrome/" CHROME_VERSION_STRING;
}

std::unique_ptr<content::TracingDelegate>
ElectronBrowserClient::CreateTracingDelegate() {
  return std::make_unique<ElectronTracingDelegate>();
}

std::string ElectronBrowserClient::GetUserAgent() {
  if (user_agent_override_.empty())
    return GetApplicationUserAgent();
  return user_agent_override_;
}

void ElectronBrowserClient::SetUserAgent(const std::string& user_agent) {
  user_agent_override_ = user_agent;
}

blink::UserAgentMetadata ElectronBrowserClient::GetUserAgentMetadata() {
  return embedder_support::GetUserAgentMetadata();
}

mojo::PendingRemote<network::mojom::URLLoaderFactory>
ElectronBrowserClient::CreateNonNetworkNavigationURLLoaderFactory(
    const std::string& scheme,
    content::FrameTreeNodeId frame_tree_node_id) {
  content::WebContents* web_contents =
      content::WebContents::FromFrameTreeNodeId(frame_tree_node_id);
  content::BrowserContext* context = web_contents->GetBrowserContext();
#if BUILDFLAG(ENABLE_ELECTRON_EXTENSIONS)
  if (scheme == extensions::kExtensionScheme) {
    return extensions::CreateExtensionNavigationURLLoaderFactory(
        context, false /* we don't support extensions::WebViewGuest */);
  }
#endif
  // Always allow navigating to file:// URLs.
  auto* protocol_registry = ProtocolRegistry::FromBrowserContext(context);
  return protocol_registry->CreateNonNetworkNavigationURLLoaderFactory(scheme);
}

void ElectronBrowserClient::
    RegisterNonNetworkWorkerMainResourceURLLoaderFactories(
        content::BrowserContext* browser_context,
        const std::optional<url::Origin>& request_initiator,
        network::mojom::RequestDestination request_destination,
        NonNetworkURLLoaderFactoryMap* factories) {
  auto* protocol_registry =
      ProtocolRegistry::FromBrowserContext(browser_context);
  // Workers are not allowed to request file:// URLs, there is no particular
  // reason for it, and we could consider supporting it in future.
  protocol_registry->RegisterURLLoaderFactories(factories,
                                                false /* allow_file_access */);
#if BUILDFLAG(ENABLE_ELECTRON_EXTENSIONS)
  factories->emplace(
      extensions::kExtensionScheme,
      extensions::CreateExtensionWorkerMainResourceURLLoaderFactory(
          browser_context, request_initiator));
#endif
}

#if BUILDFLAG(ENABLE_ELECTRON_EXTENSIONS)
namespace {

// The FileURLLoaderFactory provided to the extension background pages.
// Checks with the ChildProcessSecurityPolicy to validate the file access.
class FileURLLoaderFactory : public network::SelfDeletingURLLoaderFactory {
 public:
  static mojo::PendingRemote<network::mojom::URLLoaderFactory> Create(
      int child_id) {
    mojo::PendingRemote<network::mojom::URLLoaderFactory> pending_remote;

    // The FileURLLoaderFactory will delete itself when there are no more
    // receivers - see the SelfDeletingURLLoaderFactory::OnDisconnect method.
    base::MakeSelfDeleting<FileURLLoaderFactory>(
        child_id, pending_remote.InitWithNewPipeAndPassReceiver());

    return pending_remote;
  }

  // disable copy
  FileURLLoaderFactory(const FileURLLoaderFactory&) = delete;
  FileURLLoaderFactory& operator=(const FileURLLoaderFactory&) = delete;

  FileURLLoaderFactory(
      int child_id,
      mojo::PendingReceiver<network::mojom::URLLoaderFactory> factory_receiver,
      base::SelfDeletingPassKey key)
      : network::SelfDeletingURLLoaderFactory(std::move(factory_receiver), key),
        child_id_(child_id) {}

 private:
  ~FileURLLoaderFactory() override = default;

  // network::mojom::URLLoaderFactory:
  void CreateLoaderAndStart(
      mojo::PendingReceiver<network::mojom::URLLoader> loader,
      int32_t request_id,
      uint32_t options,
      const network::ResourceRequest& request,
      mojo::PendingRemote<network::mojom::URLLoaderClient> client,
      const net::MutableNetworkTrafficAnnotationTag& traffic_annotation)
      override {
    if (!content::ChildProcessSecurityPolicy::GetInstance()->CanRequestURL(
            child_id_, request.url)) {
      mojo::Remote<network::mojom::URLLoaderClient>(std::move(client))
          ->OnComplete(
              network::URLLoaderCompletionStatus(net::ERR_ACCESS_DENIED));
      return;
    }
    content::CreateFileURLLoaderBypassingSecurityChecks(
        request, std::move(loader), std::move(client),
        /*observer=*/nullptr,
        /* allow_directory_listing */ true);
  }

  int child_id_;
};

}  // namespace
#endif  // BUILDFLAG(ENABLE_ELECTRON_EXTENSIONS)

void ElectronBrowserClient::RegisterNonNetworkSubresourceURLLoaderFactories(
    int render_process_id,
    int render_frame_id,
    const std::optional<url::Origin>& request_initiator_origin,
    NonNetworkURLLoaderFactoryMap* factories) {
  auto* render_process_host =
      content::RenderProcessHost::FromID(render_process_id);
  DCHECK(render_process_host);
  if (!render_process_host || !render_process_host->GetBrowserContext())
    return;

  content::RenderFrameHost* frame_host =
      content::RenderFrameHost::FromID(render_process_id, render_frame_id);
  content::WebContents* web_contents =
      content::WebContents::FromRenderFrameHost(frame_host);

  // Allow accessing file:// subresources from non-file protocols if web
  // security is disabled.
  bool allow_file_access = false;
  if (web_contents) {
    const auto& web_preferences = web_contents->GetOrCreateWebPreferences();
    if (!web_preferences.web_security_enabled)
      allow_file_access = true;
  }

  ProtocolRegistry::FromBrowserContext(render_process_host->GetBrowserContext())
      ->RegisterURLLoaderFactories(factories, allow_file_access);

#if BUILDFLAG(ENABLE_ELECTRON_EXTENSIONS)
  // TODO(crbug.com/379869738) Remove FromUnsafeValue.
  auto factory = extensions::CreateExtensionURLLoaderFactory(
      content::ChildProcessId::FromUnsafeValue(render_process_id),
      render_frame_id);
  if (factory)
    factories->emplace(extensions::kExtensionScheme, std::move(factory));

  if (!web_contents)
    return;

  extensions::ElectronExtensionWebContentsObserver* web_observer =
      extensions::ElectronExtensionWebContentsObserver::FromWebContents(
          web_contents);

  // There is nothing to do if no ElectronExtensionWebContentsObserver is
  // attached to the |web_contents|.
  if (!web_observer)
    return;

  const extensions::Extension* extension =
      web_observer->GetExtensionFromFrame(frame_host, false);
  if (!extension)
    return;

  // Support for chrome:// scheme if appropriate.
  if (extension->is_extension() &&
      extensions::Manifest::IsComponentLocation(extension->location())) {
    // Components of chrome that are implemented as extensions or platform apps
    // are allowed to use chrome://resources/ and chrome://theme/ URLs.
    factories->emplace(content::kChromeUIScheme,
                       content::CreateWebUIURLLoaderFactory(
                           frame_host, content::kChromeUIScheme,
                           {content::kChromeUIResourcesHost}));
  }

  // Extensions with the necessary permissions get access to file:// URLs that
  // gets approval from ChildProcessSecurityPolicy. Keep this logic in sync with
  // ExtensionWebContentsObserver::RenderFrameCreated.
  extensions::Manifest::Type type = extension->GetType();
  if (type == extensions::Manifest::Type::kExtension &&
      AllowFileAccess(extension->id(), web_contents->GetBrowserContext())) {
    factories->emplace(url::kFileScheme,
                       FileURLLoaderFactory::Create(render_process_id));
  }
#endif
}

void ElectronBrowserClient::
    RegisterNonNetworkServiceWorkerUpdateURLLoaderFactories(
        content::BrowserContext* browser_context,
        NonNetworkURLLoaderFactoryMap* factories) {
  DCHECK(browser_context);
  DCHECK(factories);

  auto* protocol_registry =
      ProtocolRegistry::FromBrowserContext(browser_context);
  protocol_registry->RegisterURLLoaderFactories(factories,
                                                false /* allow_file_access */);

#if BUILDFLAG(ENABLE_ELECTRON_EXTENSIONS)
  factories->emplace(
      extensions::kExtensionScheme,
      extensions::CreateExtensionServiceWorkerScriptURLLoaderFactory(
          browser_context));
#endif  // BUILDFLAG(ENABLE_ELECTRON_EXTENSIONS)
}

bool ElectronBrowserClient::ShouldTreatAsFirstPartyWhenTopLevel(
    const url::Origin& top_frame_origin,
    bool is_embedded_origin_secure) {
  if (is_embedded_origin_secure &&
      top_frame_origin.scheme() == content::kChromeUIScheme)
    return true;
#if BUILDFLAG(ENABLE_ELECTRON_EXTENSIONS)
  return top_frame_origin.scheme() == extensions::kExtensionScheme;
#else
  return false;
#endif
}

bool ElectronBrowserClient::WillInterceptWebSocket(
    content::RenderFrameHost* frame) {
  if (!frame)
    return false;

  v8::Isolate* isolate = JavascriptEnvironment::GetIsolate();
  v8::HandleScope scope(isolate);
  auto* browser_context = frame->GetProcess()->GetBrowserContext();
  auto* web_request = api::WebRequest::FromOrCreate(isolate, browser_context);

  // NOTE: Some unit test environments do not initialize
  // BrowserContextKeyedAPI factories for e.g. WebRequest.
  if (!web_request)
    return false;

  bool has_listener = web_request->HasListener();
#if BUILDFLAG(ENABLE_ELECTRON_EXTENSIONS)
  const auto* web_request_api =
      extensions::BrowserContextKeyedAPIFactory<extensions::WebRequestAPI>::Get(
          browser_context);

  if (web_request_api)
    has_listener |= web_request_api->MayHaveProxies();
#endif

  return has_listener;
}

void ElectronBrowserClient::CreateWebSocket(
    content::RenderFrameHost* frame,
    WebSocketFactory factory,
    const GURL& url,
    const net::SiteForCookies& site_for_cookies,
    const std::optional<std::string>& user_agent,
    mojo::PendingRemote<network::mojom::WebSocketHandshakeClient>
        handshake_client,
    WebSocketOptions options) {
  v8::Isolate* isolate = JavascriptEnvironment::GetIsolate();
  v8::HandleScope scope(isolate);
  auto* browser_context = frame->GetProcess()->GetBrowserContext();

  auto* web_request = api::WebRequest::FromOrCreate(isolate, browser_context);
  DCHECK(web_request);

#if BUILDFLAG(ENABLE_ELECTRON_EXTENSIONS)
  if (!web_request->HasListener()) {
    auto* web_request_api = extensions::BrowserContextKeyedAPIFactory<
        extensions::WebRequestAPI>::Get(browser_context);

    if (web_request_api && web_request_api->MayHaveProxies()) {
      web_request_api->ProxyWebSocket(
          frame, std::move(factory), url, site_for_cookies, user_agent,
          std::move(handshake_client), std::move(options.header_client));
      return;
    }
  }
#endif

  ProxyingWebSocket::StartProxying(
      web_request, std::move(factory), url, site_for_cookies, user_agent,
      std::move(handshake_client), true, frame->GetProcess()->GetDeprecatedID(),
      frame->GetRoutingID(), frame->GetLastCommittedOrigin(), browser_context,
      &next_id_);
}

void ElectronBrowserClient::WillCreateURLLoaderFactory(
    content::BrowserContext* browser_context,
    content::RenderFrameHost* frame_host,
    int render_process_id,
    URLLoaderFactoryType type,
    const url::Origin& request_initiator,
    const net::IsolationInfo& isolation_info,
    std::optional<int64_t> navigation_id,
    ukm::SourceIdObj ukm_source_id,
    network::URLLoaderFactoryBuilder& factory_builder,
    mojo::PendingRemote<network::mojom::TrustedURLLoaderHeaderClient>*
        header_client,
    bool* bypass_redirect_checks,
    bool* disable_secure_dns,
    network::mojom::URLLoaderFactoryOverridePtr* factory_override,
    scoped_refptr<base::SequencedTaskRunner> navigation_response_task_runner) {
  v8::Isolate* isolate = JavascriptEnvironment::GetIsolate();
  v8::HandleScope scope(isolate);
  auto* const web_request =
      api::WebRequest::FromOrCreate(isolate, browser_context);
  DCHECK(web_request);

#if BUILDFLAG(ENABLE_ELECTRON_EXTENSIONS)
  if (!web_request->HasListener()) {
    auto* web_request_api = extensions::BrowserContextKeyedAPIFactory<
        extensions::WebRequestAPI>::Get(browser_context);

    DCHECK(web_request_api);
    bool used_proxy_for_web_request =
        web_request_api->MaybeProxyURLLoaderFactory(
            browser_context, frame_host, render_process_id, type, navigation_id,
            ukm_source_id, factory_builder, header_client,
            navigation_response_task_runner);

    if (bypass_redirect_checks)
      *bypass_redirect_checks = used_proxy_for_web_request;
    if (used_proxy_for_web_request)
      return;
  }
#endif

  auto [proxied_receiver, target_factory_remote] = factory_builder.Append();

  // Required by WebRequestInfoInitParams.
  //
  // Note that in Electron we allow webRequest to capture requests sent from
  // browser process, so creation of |navigation_ui_data| is different from
  // Chromium which only does for renderer-initialized navigations.
  std::unique_ptr<extensions::ExtensionNavigationUIData> navigation_ui_data;
  if (navigation_id.has_value()) {
    navigation_ui_data =
        std::make_unique<extensions::ExtensionNavigationUIData>();
  }

  mojo::PendingReceiver<network::mojom::TrustedURLLoaderHeaderClient>
      header_client_receiver;
  if (header_client)
    header_client_receiver = header_client->InitWithNewPipeAndPassReceiver();

  auto* protocol_registry =
      ProtocolRegistry::FromBrowserContext(browser_context);
  new ProxyingURLLoaderFactory{
      web_request,
      protocol_registry->intercept_handlers(),
      static_cast<ElectronBrowserContext*>(browser_context)->GetWeakPtr(),
      render_process_id,
      frame_host ? frame_host->GetRoutingID() : IPC::mojom::kRoutingIdNone,
      &next_id_,
      std::move(navigation_ui_data),
      std::move(navigation_id),
      std::move(proxied_receiver),
      std::move(target_factory_remote),
      std::move(header_client_receiver),
      type};
}

std::vector<std::unique_ptr<content::URLLoaderRequestInterceptor>>
ElectronBrowserClient::WillCreateURLLoaderRequestInterceptors(
    content::NavigationUIData* navigation_ui_data,
    content::FrameTreeNodeId frame_tree_node_id,
    int64_t navigation_id,
    bool force_no_https_upgrade,
    scoped_refptr<base::SequencedTaskRunner> navigation_response_task_runner) {
  std::vector<std::unique_ptr<content::URLLoaderRequestInterceptor>>
      interceptors;
#if BUILDFLAG(ENABLE_PDF_VIEWER)
  {
    std::unique_ptr<content::URLLoaderRequestInterceptor> pdf_interceptor =
        pdf::PdfURLLoaderRequestInterceptor::MaybeCreateInterceptor(
            frame_tree_node_id, std::make_unique<ChromePdfStreamDelegate>());
    if (pdf_interceptor)
      interceptors.push_back(std::move(pdf_interceptor));
  }
#endif
  return interceptors;
}

void ElectronBrowserClient::OverrideURLLoaderFactoryParams(
    content::BrowserContext* browser_context,
    const url::Origin& origin,
    bool is_for_isolated_world,
    bool is_for_service_worker,
    network::mojom::URLLoaderFactoryParams* factory_params) {
  if (factory_params->top_frame_id &&
      !factory_params->process_id.is_browser()) {
    // Bypass CORB and CORS when web security is disabled.
    auto* rfh = content::RenderFrameHost::FromFrameToken(
        content::GlobalRenderFrameHostToken(
            factory_params->process_id.renderer_process_id().value(),
            blink::LocalFrameToken(factory_params->top_frame_id.value())));
    auto* web_contents = content::WebContents::FromRenderFrameHost(rfh);
    auto* prefs = WebContentsPreferences::From(web_contents);
    if (prefs && !prefs->IsWebSecurityEnabled()) {
      factory_params->is_orb_enabled = false;
      factory_params->disable_web_security = true;
    }
  }
#if BUILDFLAG(ENABLE_ELECTRON_EXTENSIONS)
  extensions::URLLoaderFactoryManager::OverrideURLLoaderFactoryParams(
      browser_context, origin, is_for_isolated_world, is_for_service_worker,
      factory_params);
#endif
}

void ElectronBrowserClient::RegisterAssociatedInterfaceBindersForServiceWorker(
    const content::ServiceWorkerVersionBaseInfo& service_worker_version_info,
    blink::AssociatedInterfaceRegistry& associated_registry) {
  CHECK(service_worker_version_info.process_id);
  associated_registry.AddInterface<mojom::ElectronApiIPC>(
      base::BindRepeating(&ElectronApiSWIPCHandlerImpl::BindReceiver,
                          service_worker_version_info.process_id,
                          service_worker_version_info.version_id));

#if BUILDFLAG(ENABLE_ELECTRON_EXTENSIONS)
  associated_registry.AddInterface<extensions::mojom::RendererHost>(
      base::BindRepeating(&extensions::RendererStartupHelper::BindForRenderer,
                          service_worker_version_info.process_id));
  associated_registry.AddInterface<extensions::mojom::ServiceWorkerHost>(
      base::BindRepeating(&extensions::ServiceWorkerHost::BindReceiver,
                          service_worker_version_info.process_id));
#endif
}

void ElectronBrowserClient::
    RegisterAssociatedInterfaceBindersForRenderFrameHost(
        content::RenderFrameHost&
            render_frame_host,  // NOLINT(runtime/references)
        blink::AssociatedInterfaceRegistry&
            associated_registry) {  // NOLINT(runtime/references)
  auto* contents =
      content::WebContents::FromRenderFrameHost(&render_frame_host);
  if (contents) {
    auto* prefs = WebContentsPreferences::From(contents);
    if (render_frame_host.GetFrameTreeNodeId() ==
            contents->GetPrimaryMainFrame()->GetFrameTreeNodeId() ||
        (prefs && prefs->AllowsNodeIntegrationInSubFrames())) {
      associated_registry.AddInterface<mojom::ElectronApiIPC>(
          base::BindRepeating(
              [](content::RenderFrameHost* render_frame_host,
                 mojo::PendingAssociatedReceiver<mojom::ElectronApiIPC>
                     receiver) {
                ElectronApiIPCHandlerImpl::Create(render_frame_host,
                                                  std::move(receiver));
              },
              &render_frame_host));
    }
  }

  associated_registry.AddInterface<mojom::ElectronWebContentsUtility>(
      base::BindRepeating(
          [](content::RenderFrameHost* render_frame_host,
             mojo::PendingAssociatedReceiver<mojom::ElectronWebContentsUtility>
                 receiver) {
            ElectronWebContentsUtilityHandlerImpl::Create(render_frame_host,
                                                          std::move(receiver));
          },
          &render_frame_host));

  associated_registry.AddInterface<mojom::ElectronAutofillDriver>(
      base::BindRepeating(
          [](content::RenderFrameHost* render_frame_host,
             mojo::PendingAssociatedReceiver<mojom::ElectronAutofillDriver>
                 receiver) {
            AutofillDriverFactory::BindAutofillDriver(std::move(receiver),
                                                      render_frame_host);
          },
          &render_frame_host));
#if BUILDFLAG(ENABLE_PLUGINS)
  associated_registry.AddInterface<mojom::ElectronPluginInfoHost>(
      base::BindRepeating(
          [](content::RenderFrameHost* render_frame_host,
             mojo::PendingAssociatedReceiver<mojom::ElectronPluginInfoHost>
                 receiver) {
            mojo::MakeSelfOwnedAssociatedReceiver(
                std::make_unique<ElectronPluginInfoHostImpl>(),
                std::move(receiver));
          },
          &render_frame_host));
#endif
#if BUILDFLAG(ENABLE_PRINTING)
  associated_registry.AddInterface<printing::mojom::PrintManagerHost>(
      base::BindRepeating(
          [](content::RenderFrameHost* render_frame_host,
             mojo::PendingAssociatedReceiver<printing::mojom::PrintManagerHost>
                 receiver) {
            PrintViewManagerElectron::BindPrintManagerHost(std::move(receiver),
                                                           render_frame_host);
          },
          &render_frame_host));
#endif
#if BUILDFLAG(ENABLE_ELECTRON_EXTENSIONS)
  content::ChildProcessId render_process_id =
      render_frame_host.GetProcess()->GetID();
  associated_registry.AddInterface<extensions::mojom::EventRouter>(
      base::BindRepeating(&extensions::EventRouter::BindForRenderer,
                          render_process_id));
  associated_registry.AddInterface<extensions::mojom::RendererHost>(
      base::BindRepeating(&extensions::RendererStartupHelper::BindForRenderer,
                          render_process_id));
  associated_registry.AddInterface<extensions::mojom::LocalFrameHost>(
      base::BindRepeating(
          [](content::RenderFrameHost* render_frame_host,
             mojo::PendingAssociatedReceiver<extensions::mojom::LocalFrameHost>
                 receiver) {
            extensions::ExtensionWebContentsObserver::BindLocalFrameHost(
                std::move(receiver), render_frame_host);
          },
          &render_frame_host));
  associated_registry.AddInterface<guest_view::mojom::GuestViewHost>(
      base::BindRepeating(&extensions::ExtensionsGuestView::CreateForComponents,
                          render_frame_host.GetGlobalId()));
  associated_registry.AddInterface<extensions::mojom::GuestView>(
      base::BindRepeating(&extensions::ExtensionsGuestView::CreateForExtensions,
                          render_frame_host.GetGlobalId()));
#endif
#if BUILDFLAG(ENABLE_PDF_VIEWER)
  associated_registry.AddInterface<pdf::mojom::PdfHost>(base::BindRepeating(
      [](content::RenderFrameHost* render_frame_host,
         mojo::PendingAssociatedReceiver<pdf::mojom::PdfHost> receiver) {
        pdf::PDFDocumentHelper::BindPdfHost(
            std::move(receiver), render_frame_host,
            std::make_unique<ElectronPDFDocumentHelperClient>());
      },
      &render_frame_host));
#endif
}

std::string ElectronBrowserClient::GetApplicationLocale() {
  return BrowserThread::CurrentlyOn(BrowserThread::IO)
             ? *g_io_thread_application_locale
             : *g_application_locale;
}

bool ElectronBrowserClient::ShouldEnableStrictSiteIsolation() {
  // Enable site isolation. It is off by default in Chromium <= 69.
  return true;
}

bool ElectronBrowserClient::ShouldEnableSubframeZoom() {
#if BUILDFLAG(ENABLE_PDF_VIEWER)
  return chrome_pdf::features::IsOopifPdfEnabled();
#else
  return false;
#endif
}

#if BUILDFLAG(ENABLE_PDF_VIEWER)
std::optional<network::CrossOriginEmbedderPolicy>
ElectronBrowserClient::MaybeOverrideLocalURLCrossOriginEmbedderPolicy(
    content::NavigationHandle* navigation_handle) {
  if (!chrome_pdf::features::IsOopifPdfEnabled() ||
      !navigation_handle->IsPdf()) {
    return std::nullopt;
  }

  content::RenderFrameHost* pdf_extension = navigation_handle->GetParentFrame();
  if (!pdf_extension) {
    return std::nullopt;
  }

  content::RenderFrameHost* pdf_embedder = pdf_extension->GetParent();
  CHECK(pdf_embedder);
  return pdf_embedder->GetCrossOriginEmbedderPolicy();
}
#endif  // BUILDFLAG(ENABLE_PDF_VIEWER)

bool ElectronBrowserClient::DoesSiteRequireDedicatedProcess(
    content::BrowserContext* browser_context,
    const GURL& effective_site_url) {
#if BUILDFLAG(ENABLE_ELECTRON_EXTENSIONS)
  return GetEnabledExtensionFromEffectiveURL(browser_context,
                                             effective_site_url) != nullptr;
#else
  return content::ContentBrowserClient::DoesSiteRequireDedicatedProcess(
      browser_context, effective_site_url);
#endif
}

void ElectronBrowserClient::BindHostReceiverForRenderer(
    content::RenderProcessHost* render_process_host,
    mojo::GenericPendingReceiver receiver) {
#if BUILDFLAG(ENABLE_BUILTIN_SPELLCHECKER)
  if (auto host_receiver =
          receiver.As<spellcheck::mojom::SpellCheckInitializationHost>()) {
    SpellCheckInitializationHostImpl::Create(
        render_process_host->GetDeprecatedID(), std::move(host_receiver));
    return;
  }
#endif
}

#if BUILDFLAG(ENABLE_ELECTRON_EXTENSIONS)
namespace {
void BindMimeHandlerService(
    content::RenderFrameHost* frame_host,
    mojo::PendingReceiver<extensions::mime_handler::MimeHandlerService>
        receiver) {
  content::WebContents* contents =
      content::WebContents::FromRenderFrameHost(frame_host);
  auto* guest_view =
      extensions::MimeHandlerViewGuest::FromWebContents(contents);
  if (!guest_view)
    return;
  extensions::MimeHandlerServiceImpl::Create(guest_view->GetStreamWeakPtr(),
                                             std::move(receiver));
}

void BindBeforeUnloadControl(
    content::RenderFrameHost* frame_host,
    mojo::PendingReceiver<extensions::mime_handler::BeforeUnloadControl>
        receiver) {
  auto* web_contents = content::WebContents::FromRenderFrameHost(frame_host);
  if (!web_contents)
    return;

  auto* guest_view =
      extensions::MimeHandlerViewGuest::FromWebContents(web_contents);
  if (!guest_view)
    return;
  guest_view->FuseBeforeUnloadControl(std::move(receiver));
}
}  // namespace
#endif

void ElectronBrowserClient::ExposeInterfacesToRenderer(
    service_manager::BinderRegistry* registry,
    blink::AssociatedInterfaceRegistry* associated_registry,
    content::RenderProcessHost* render_process_host) {
#if BUILDFLAG(ENABLE_ELECTRON_EXTENSIONS)
  associated_registry->AddInterface<extensions::mojom::RendererHost>(
      base::BindRepeating(&extensions::RendererStartupHelper::BindForRenderer,
                          render_process_host->GetID()));
#endif
}

void ElectronBrowserClient::RegisterBrowserInterfaceBindersForFrame(
    content::RenderFrameHost* render_frame_host,
    mojo::BinderMapWithContext<content::RenderFrameHost*>* map) {
  map->Add<network_hints::mojom::NetworkHintsHandler>(
      base::BindRepeating(&BindNetworkHintsHandler));
  map->Add<blink::mojom::BadgeService>(
      base::BindRepeating(&badging::BadgeManager::BindFrameReceiver));
  map->Add<blink::mojom::KeyboardLockService>(base::BindRepeating(
      &content::KeyboardLockServiceImpl::CreateMojoService));
#if BUILDFLAG(ENABLE_BUILTIN_SPELLCHECKER)
  map->Add<spellcheck::mojom::SpellCheckHost>(base::BindRepeating(
      [](content::RenderFrameHost* frame_host,
         mojo::PendingReceiver<spellcheck::mojom::SpellCheckHost> receiver) {
        SpellCheckHostChromeImpl::Create(
            frame_host->GetProcess()->GetDeprecatedID(), std::move(receiver));
      }));
#endif
#if BUILDFLAG(ENABLE_ELECTRON_EXTENSIONS)
  map->Add<extensions::mime_handler::MimeHandlerService>(
      base::BindRepeating(&BindMimeHandlerService));
  map->Add<extensions::mime_handler::BeforeUnloadControl>(
      base::BindRepeating(&BindBeforeUnloadControl));

  content::WebContents* web_contents =
      content::WebContents::FromRenderFrameHost(render_frame_host);
  if (!web_contents)
    return;

  const GURL& site = render_frame_host->GetSiteInstance()
                         ->GetSecurityPrincipal()
                         .GetDeprecatedSiteURL();
  if (!site.SchemeIs(extensions::kExtensionScheme))
    return;

  content::BrowserContext* browser_context =
      render_frame_host->GetProcess()->GetBrowserContext();
  auto* extension = extensions::ExtensionRegistry::Get(browser_context)
                        ->enabled_extensions()
                        .GetByID(site.GetHost());
  if (!extension)
    return;
  extensions::ExtensionsBrowserClient::Get()
      ->RegisterBrowserInterfaceBindersForFrame(map, render_frame_host,
                                                extension);
#endif

#if BUILDFLAG(ENABLE_PDF_VIEWER)
  map->Add<help_bubble::mojom::PdfHelpBubbleHandlerFactory>(
      &pdf::PdfHelpBubbleHandlerFactory::Create);
#endif
}

#if BUILDFLAG(IS_LINUX)
void ElectronBrowserClient::GetAdditionalMappedFilesForChildProcess(
    const base::CommandLine& command_line,
    int child_process_id,
    content::PosixFileDescriptorInfo* mappings) {
  int crash_signal_fd = GetCrashSignalFD(command_line);
  if (crash_signal_fd >= 0) {
    mappings->Share(kCrashDumpSignal, crash_signal_fd);
  }
}
#endif

bool ElectronBrowserClient::IsFullscreenAllowedForUnfocusedWebContents(
    content::WebContents* unfocused_web_contents) {
  return static_cast<content::WebContentsImpl*>(unfocused_web_contents)
      ->IsGuest();
}

std::unique_ptr<content::LoginDelegate>
ElectronBrowserClient::CreateLoginDelegate(
    const net::AuthChallengeInfo& auth_info,
    content::WebContents* web_contents,
    content::BrowserContext* browser_context,
    const content::GlobalRequestID& request_id,
    bool is_request_for_primary_main_frame,
    bool is_request_for_navigation,
    const GURL& url,
    scoped_refptr<net::HttpResponseHeaders> response_headers,
    bool first_auth_attempt,
    content::GuestPageHolder* guest_page_holder,
    content::LoginDelegate::LoginAuthRequiredCallback auth_required_callback) {
  return std::make_unique<LoginHandler>(
      auth_info, web_contents, is_request_for_primary_main_frame,
      is_request_for_navigation, base::kNullProcessId, url, response_headers,
      first_auth_attempt, std::move(auth_required_callback));
}

std::vector<std::unique_ptr<blink::URLLoaderThrottle>>
ElectronBrowserClient::CreateURLLoaderThrottles(
    const network::ResourceRequest& request,
    content::BrowserContext* browser_context,
    const base::RepeatingCallback<content::WebContents*()>& wc_getter,
    content::NavigationUIData* navigation_ui_data,
    content::FrameTreeNodeId frame_tree_node_id,
    std::optional<int64_t> navigation_id) {
  DCHECK_CURRENTLY_ON(BrowserThread::UI);

  std::vector<std::unique_ptr<blink::URLLoaderThrottle>> result;

#if BUILDFLAG(ENABLE_PLUGINS) && BUILDFLAG(ENABLE_ELECTRON_EXTENSIONS)
  result.push_back(std::make_unique<PluginResponseInterceptorURLLoaderThrottle>(
      request.destination, frame_tree_node_id));
#endif

  return result;
}

base::flat_set<std::string>
ElectronBrowserClient::GetPluginMimeTypesWithExternalHandlers(
    content::BrowserContext* browser_context) {
  base::flat_set<std::string> mime_types;
#if BUILDFLAG(ENABLE_PLUGINS) && BUILDFLAG(ENABLE_ELECTRON_EXTENSIONS)
  auto map = PluginUtils::GetMimeTypeToExtensionIdMap(browser_context);
  for (const auto& pair : map)
    mime_types.insert(pair.first);
#endif
#if BUILDFLAG(ENABLE_PDF_VIEWER)
  mime_types.insert(pdf::kInternalPluginMimeType);
#endif
  return mime_types;
}

content::SerialDelegate* ElectronBrowserClient::GetSerialDelegate() {
  if (!serial_delegate_)
    serial_delegate_ = std::make_unique<ElectronSerialDelegate>();
  return serial_delegate_.get();
}

content::BluetoothDelegate* ElectronBrowserClient::GetBluetoothDelegate() {
  if (!bluetooth_delegate_)
    bluetooth_delegate_ = std::make_unique<ElectronBluetoothDelegate>();
  return bluetooth_delegate_.get();
}

content::UsbDelegate* ElectronBrowserClient::GetUsbDelegate() {
  if (!usb_delegate_)
    usb_delegate_ = std::make_unique<ElectronUsbDelegate>();
  return usb_delegate_.get();
}

namespace {

void BindBadgeServiceForServiceWorker(
    const content::ServiceWorkerVersionBaseInfo& info,
    mojo::PendingReceiver<blink::mojom::BadgeService> receiver) {
  DCHECK_CURRENTLY_ON(content::BrowserThread::UI);

  content::RenderProcessHost* render_process_host =
      content::RenderProcessHost::FromID(info.process_id);
  if (!render_process_host)
    return;

  badging::BadgeManager::BindServiceWorkerReceiver(
      render_process_host, info.scope, std::move(receiver));
}

}  // namespace

void ElectronBrowserClient::RegisterBrowserInterfaceBindersForServiceWorker(
    content::BrowserContext* browser_context,
    const content::ServiceWorkerVersionBaseInfo& service_worker_version_info,
    mojo::BinderMapWithContext<const content::ServiceWorkerVersionBaseInfo&>*
        map) {
  map->Add<blink::mojom::BadgeService>(
      base::BindRepeating(&BindBadgeServiceForServiceWorker));
}

#if BUILDFLAG(IS_MAC)
std::string ElectronBrowserClient::GetChildProcessSuffix(int child_flags) {
  if (child_flags ==
      static_cast<int>(
          ElectronChildProcessHostFlags::kChildProcessHelperPlugin)) {
    return kElectronMacHelperSuffixPlugin;
  }
  NOTREACHED() << "Unsupported child process flags: " << child_flags;
}

device::GeolocationSystemPermissionManager*
ElectronBrowserClient::GetGeolocationSystemPermissionManager() {
  return device::GeolocationSystemPermissionManager::GetInstance();
}
#endif

content::HidDelegate* ElectronBrowserClient::GetHidDelegate() {
  if (!hid_delegate_)
    hid_delegate_ = std::make_unique<ElectronHidDelegate>();
  return hid_delegate_.get();
}

content::WebAuthenticationDelegate*
ElectronBrowserClient::GetWebAuthenticationDelegate() {
  if (!web_authentication_delegate_) {
    web_authentication_delegate_ =
        std::make_unique<ElectronWebAuthenticationDelegate>();
  }
  return web_authentication_delegate_.get();
}

#if !BUILDFLAG(IS_ANDROID)
std::unique_ptr<content::AuthenticatorRequestClientDelegate>
ElectronBrowserClient::GetWebAuthenticationRequestDelegate(
    content::RenderFrameHost* render_frame_host) {
  return std::make_unique<ElectronAuthenticatorRequestClientDelegate>(
      render_frame_host);
}
#endif

}  // namespace electron
