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 5754c2bd330537ac0dde9fe71e263c1ee6f06e53..bf2dd48ecc9f246330a42d21d2450df7aa20928b 100644
--- a/content/browser/renderer_host/render_widget_host_impl.cc
+++ b/content/browser/renderer_host/render_widget_host_impl.cc
@@ -789,6 +789,9 @@ 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 3d03709303e22489edf7c8cf61a611c0832ea26e..469b91d7bd3f46fb23645a9d5a0f1f9e5519ba59 100644
--- a/content/browser/renderer_host/render_widget_host_impl.h
+++ b/content/browser/renderer_host/render_widget_host_impl.h
@@ -1008,6 +1008,9 @@ 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 8d972bcdd27ee4f2c58e7c2afa48d09b17834484..7d98ecd39b39378fb4f16a9abbdd18ad31f69610 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();