electron/patches/chromium/dom_storage_limits.patch

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::Channel::kMaximumMessageSize` (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.cc b/components/services/storage/dom_storage/dom_storage_constants.cc
index 3fd108c89c3b070a08790850db4dfd6cc8a3ce44..c393f51709efd8b28b07edfe452d2b84b14983ae 100644
--- a/components/services/storage/dom_storage/dom_storage_constants.cc
+++ b/components/services/storage/dom_storage/dom_storage_constants.cc
@@ -6,7 +6,9 @@
 
 namespace storage {
 
-const size_t kPerStorageAreaQuota = 10 * 1024 * 1024;
+// Electron's dom_storage_limits.patch increased this value from 10MiB to 100MiB
+const size_t kPerStorageAreaQuota = 100 * 1024 * 1024;
+
 const size_t kPerStorageAreaOverQuotaAllowance = 100 * 1024;
 
 }  // namespace storage
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 c9f9124eb6f4900988ad63fa38a03b7b6c5d1abb..9cba4e5af9a624d358697d806f151ee3998f0b58 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