Disable idle suspend for Chromecast

content/public/renderer/content_renderer_client.h

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef CONTENT_PUBLIC_RENDERER_CONTENT_RENDERER_CLIENT_H_
 #define CONTENT_PUBLIC_RENDERER_CONTENT_RENDERER_CLIENT_H_
 
 #include <stddef.h>
 
 #include <map>
@@ skipping 330 matching lines @@
       const GURL& url) {}
 
   // Whether this renderer should enforce preferences related to the WebRTC
   // routing logic, i.e. allowing multiple routes and non-proxied UDP.
   virtual bool ShouldEnforceWebRTCRoutingPreferences();
 
   // Notifies that a worker context has been created. This function is called
   // from the worker thread.
   virtual void DidInitializeWorkerContextOnWorkerThread(
       v8::Local<v8::Context> context) {}
+
+  // Whether this renderer allows media players to suspend when idle.
+  virtual bool AllowMediaIdleSuspend();

[alokp, 2016/05/17 15:13:38]

IMHO this API does not belong here. Since this is need to workaround media
decoder limitation, I think it would be more appropriate to add this to
media::Renderer.

May be Renderer::Initialize should return a RendererCapabilities struct that
indicates whether it supports suspend?

 };
 
 }  // namespace content
 
 #endif  // CONTENT_PUBLIC_RENDERER_CONTENT_RENDERER_CLIENT_H_