From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Jacob Quant <jacobq@gmail.com>
Date: Thu, 31 Oct 2019 14:00:00 -0500
Subject: dom_storage_limits.patch

This patch increases the DOM storage (e.g. `localStorage`
and `sessionStorage`) size quota from 10MiB to 100MiB.
Previous versions of this patch attempted to circumvent
the restriction altogether.
However, this can lead to other problems, such as crashing
the Dev Tools when attempting to read or write values that exceed
`IPC::mojom::kChannelMaximumMessageSize` (128MiB).

Increasing the quota rather than bypassing it reduces the
amount of chromium code that needs to be changed for Electron
as well as keeps these storage areas limited to a bounded
size meanwhile giving application developers more space to work with.

diff --git a/components/services/storage/dom_storage/dom_storage_constants.h b/components/services/storage/dom_storage/dom_storage_constants.h
index 9d9a8aeab2343942a88ee882e21191719bee019f..9f58743e0bb79e3e10095a6a1adc543846022f3b 100644
--- a/components/services/storage/dom_storage/dom_storage_constants.h
+++ b/components/services/storage/dom_storage/dom_storage_constants.h
@@ -11,7 +11,8 @@ namespace storage {
 
 // The quota for each storage area.
 // This value is enforced by clients and by the storage service.
-inline constexpr size_t kPerStorageAreaQuota = 10 * 1024 * 1024;
+// Electron's dom_storage_limits.patch increased this value from 10MiB to 100MiB
+inline constexpr size_t kPerStorageAreaQuota = 100 * 1024 * 1024;
 
 // In the storage service we allow some overage to
 // accommodate concurrent writes from different clients
diff --git a/third_party/blink/public/mojom/dom_storage/storage_area.mojom b/third_party/blink/public/mojom/dom_storage/storage_area.mojom
index 6186710032cd9cdc3dc0514c80c7639a8e43129e..9b896ddf8ef962742fee8e9de799a3b2a611a876 100644
--- a/third_party/blink/public/mojom/dom_storage/storage_area.mojom
+++ b/third_party/blink/public/mojom/dom_storage/storage_area.mojom
@@ -50,7 +50,8 @@ struct KeyValue {
 interface StorageArea {
   // The quota for each storage area.
   // This value is enforced in renderer processes and the browser process.
-  const uint32 kPerStorageAreaQuota = 10485760; // 10 MiB
+  // Electron's dom_storage_limits.patch increased this value from 10MiB to 100MiB
+  const uint32 kPerStorageAreaQuota = 104857600; // 100 MiB
 
   // In the browser process we allow some overage to
   // accommodate concurrent writes from different renderers
