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 5e261c6e3555b2891b25d8acad49cf86f51a418e..7a84a4e6c65eb5b9373b0667166188d93948ad68 100644
--- a/content/browser/renderer_host/render_widget_host_impl.cc
+++ b/content/browser/renderer_host/render_widget_host_impl.cc
@@ -800,6 +800,9 @@ void RenderWidgetHostImpl::WasHidden() {
     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 b60b9a5d403bd8be11a6132f630954b53e9de571..beb2af696d0f6585648b65f70ef5b68b804931c0 100644
--- a/content/browser/renderer_host/render_widget_host_impl.h
+++ b/content/browser/renderer_host/render_widget_host_impl.h
@@ -901,6 +901,8 @@ class CONTENT_EXPORT RenderWidgetHostImpl
   void UpdateBrowserControlsState(cc::BrowserControlsState constraints,
                                   cc::BrowserControlsState current,
                                   bool animate);
+  // Electron: Prevents the widget from getting hidden.
+  bool disable_hidden_ = false;
 
  protected:
   // |routing_id| must not be MSG_ROUTING_NONE.
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 e3a86d56dee37c990c71403515013558f9fdfafb..ae96b235b8b85abc7a8d5fc9213d90181a82faee 100644
--- a/content/browser/renderer_host/render_widget_host_view_aura.cc
+++ b/content/browser/renderer_host/render_widget_host_view_aura.cc
@@ -617,7 +617,7 @@ 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();
       aura::Window* parent = window_->parent();