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 5a521aa5a61172954ad09a49c44a22633b1471ac..ce714ed077d9e5a22b5de926408fbe6d35cc04d6 100644
--- a/content/browser/renderer_host/render_widget_host_impl.cc
+++ b/content/browser/renderer_host/render_widget_host_impl.cc
@@ -789,6 +789,10 @@ void RenderWidgetHostImpl::WasHidden() {
     return;
   }
 
+  if (disable_hidden_) {
+    return;
+  }
+
   // Cancel pending pointer lock requests, unless there's an open user prompt.
   // Prompts should remain open and functional across tab switches.
   if (!delegate_->IsWaitingForPointerLockPrompt(this)) {
diff --git a/content/browser/renderer_host/render_widget_host_impl.h b/content/browser/renderer_host/render_widget_host_impl.h
index b8dadc4cca4621e991cdc874e0663cedd3f48d74..34ceb4c605a767e1eaf5434a68132f98b0a4056c 100644
--- a/content/browser/renderer_host/render_widget_host_impl.h
+++ b/content/browser/renderer_host/render_widget_host_impl.h
@@ -1018,6 +1018,9 @@ class CONTENT_EXPORT RenderWidgetHostImpl
   // Requests a commit and forced redraw in the renderer compositor.
   void ForceRedrawForTesting();
 
+  // Electron: Prevents the widget from getting hidden.
+  bool disable_hidden_ = false;
+
  protected:
   // |routing_id| must not be MSG_ROUTING_NONE.
   // If this object outlives |delegate|, DetachDelegate() must be called when
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 55548735a1d1072a4d5d3c463a759c0ebf243af9..5de852d1bab55804b521e128c48f3013281872f2 100644
--- a/content/browser/renderer_host/render_widget_host_view_aura.cc
+++ b/content/browser/renderer_host/render_widget_host_view_aura.cc
@@ -649,7 +649,7 @@ void RenderWidgetHostViewAura::HideImpl() {
   CHECK(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();