electron/patches/chromium/disable_hidden.patch

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 fb8f39aa55ffd192f5d7fc9c49408dcf3c5c4cd4..16f88856c10df7af52356ea5648c5062804fd769 100644
--- a/content/browser/renderer_host/render_widget_host_impl.cc
+++ b/content/browser/renderer_host/render_widget_host_impl.cc
@@ -749,6 +749,9 @@ void RenderWidgetHostImpl::WasHidden() {
     return;
   }
 
+  if (disable_hidden_)
+    return;
+
   RejectPointerLockOrUnlockIfNecessary(
       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 220f8998b0499128396d868d1a80e402ddcff5fc..c51e6f684a58458ce487baaa970c438222a9f299 100644
--- a/content/browser/renderer_host/render_widget_host_impl.h
+++ b/content/browser/renderer_host/render_widget_host_impl.h
@@ -919,6 +919,8 @@ 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;
 
   void StartDragging(blink::mojom::DragDataPtr drag_data,
                      const url::Origin& source_origin,
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 bb65375eb77e0bc56ef6a6d0cb537ce59b14f9f2..95fb2a4b401ec57ed4492413a2607dba5ece1fa6 100644
--- a/content/browser/renderer_host/render_widget_host_view_aura.cc
+++ b/content/browser/renderer_host/render_widget_host_view_aura.cc
@@ -614,7 +614,7 @@ 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();