From 0000000000000000000000000000000000000000 Mon Sep 17 00:00:00 2001
From: Cheng Zhao <zcbenz@gmail.com>
Date: Thu, 20 Sep 2018 17:45:47 -0700
Subject: disable_hidden.patch

Electron uses this to disable background throttling for hidden windows.

diff --git a/content/browser/renderer_host/render_widget_host_impl.cc b/content/browser/renderer_host/render_widget_host_impl.cc
index e8fb8793645821940bc41ced7cc14af404a1e229..ffe62ea1114943d1535a806fa515122c47072372 100644
--- a/content/browser/renderer_host/render_widget_host_impl.cc
+++ b/content/browser/renderer_host/render_widget_host_impl.cc
@@ -689,6 +689,9 @@ void RenderWidgetHostImpl::WasHidden() {
   if (is_hidden_)
     return;
 
+  if (disable_hidden_)
+    return;
+
   RejectMouseLockOrUnlockIfNecessary(
       blink::mojom::PointerLockResult::kWrongDocument);
 
diff --git a/content/browser/renderer_host/render_widget_host_impl.h b/content/browser/renderer_host/render_widget_host_impl.h
index 111ffbd4ee5d6a7093c32f9c1b1f827dc802f4fa..af5d67ff3ebc74c022800fd8ae3c139fc5806639 100644
--- a/content/browser/renderer_host/render_widget_host_impl.h
+++ b/content/browser/renderer_host/render_widget_host_impl.h
@@ -174,6 +174,9 @@ class CONTENT_EXPORT RenderWidgetHostImpl
   // RenderWidgetHostImpl.
   static RenderWidgetHostImpl* From(RenderWidgetHost* rwh);
 
+  // Electron: Prevents the widget from getting hidden.
+  bool disable_hidden_ = false;
+
   void set_new_content_rendering_delay_for_testing(
       const base::TimeDelta& delay) {
     new_content_rendering_delay_ = delay;
diff --git a/content/browser/renderer_host/render_widget_host_view_aura.cc b/content/browser/renderer_host/render_widget_host_view_aura.cc
index f32ba1d31ddb1ca68e889f0ae0cc7a5b3357f58c..08122746971e88792481af96b9270c5ff503c3b2 100644
--- a/content/browser/renderer_host/render_widget_host_view_aura.cc
+++ b/content/browser/renderer_host/render_widget_host_view_aura.cc
@@ -625,7 +625,7 @@ void RenderWidgetHostViewAura::HideImpl() {
   DCHECK(visibility_ == Visibility::HIDDEN ||
          visibility_ == Visibility::OCCLUDED);
 
-  if (!host()->is_hidden()) {
+  if (!host()->is_hidden() && !host()->disable_hidden_) {
     host()->WasHidden();
     aura::WindowTreeHost* host = window_->GetHost();
     if (delegated_frame_host_) {