From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Cezary Kulakowski <cezary@openfin.co>
Date: Tue, 11 May 2021 11:14:06 +0200
Subject: fix: fix aspect ratio when max width/height is set

Add the native frame border size to the minimum and maximum size if
the view reports its size as the client size. It allows to enlarge
window to proper values when aspect ratio and max width/height are
set. It also fixes DCHECK which was triggered when user tried to
enlarge window above dimensions set during creation of the
BrowserWindow.

diff --git a/ui/views/win/hwnd_message_handler.cc b/ui/views/win/hwnd_message_handler.cc
index a1a7081d64cfcc2c68986788e24bcad0d15f0533..accfa82763a122dedc6eba4d9350bcd54371ac81 100644
--- a/ui/views/win/hwnd_message_handler.cc
+++ b/ui/views/win/hwnd_message_handler.cc
@@ -3780,6 +3780,21 @@ void HWNDMessageHandler::SizeWindowToAspectRatio(UINT param,
   delegate_->GetMinMaxSize(&min_window_size, &max_window_size);
   min_window_size = delegate_->DIPToScreenSize(min_window_size);
   max_window_size = delegate_->DIPToScreenSize(max_window_size);
+  // Add the native frame border size to the minimum and maximum size if the
+  // view reports its size as the client size.
+  if (delegate_->WidgetSizeIsClientSize()) {
+    RECT client_rect, rect;
+    GetClientRect(hwnd(), &client_rect);
+    GetWindowRect(hwnd(), &rect);
+    CR_DEFLATE_RECT(&rect, &client_rect);
+    min_window_size.Enlarge(rect.right - rect.left,
+                            rect.bottom - rect.top);
+    // Either axis may be zero, so enlarge them independently.
+    if (max_window_size.width())
+      max_window_size.Enlarge(rect.right - rect.left, 0);
+    if (max_window_size.height())
+      max_window_size.Enlarge(0, rect.bottom - rect.top);
+  }
 
   absl::optional<gfx::Size> max_size_param;
   if (!max_window_size.IsEmpty())
