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 81083c45723e4f6c9be332449939f783f9e6a868..9dfabaf262152c8b31b15a294ed7204917c7f5e1 100644
--- a/content/browser/renderer_host/render_widget_host_impl.cc
+++ b/content/browser/renderer_host/render_widget_host_impl.cc
@@ -693,6 +693,9 @@ 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 b7511a52f77649a0deddc41d0982ebd7c5e8eddd..06378d8ef4da2ecc7bf260f9964322989bd74f6b 100644
--- a/content/browser/renderer_host/render_widget_host_impl.h
+++ b/content/browser/renderer_host/render_widget_host_impl.h
@@ -173,6 +173,9 @@ 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 934ab262a5785872a8a389dc5fec1a898fe1e7f7..b2b095e2b5ddead325351fadb16a9ab0b361cd32 100644
--- a/content/browser/renderer_host/render_widget_host_view_aura.cc
+++ b/content/browser/renderer_host/render_widget_host_view_aura.cc
@@ -627,7 +627,7 @@ 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_) {