Require Renderer::Initialize() to return a status code via callback.

media/mojo/services/mojo_renderer_service.h

 // Copyright 2014 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 MEDIA_MOJO_SERVICES_MOJO_RENDERER_SERVICE_H_
 #define MEDIA_MOJO_SERVICES_MOJO_RENDERER_SERVICE_H_
 
 #include "base/callback.h"
 #include "base/macros.h"
 #include "base/memory/scoped_ptr.h"
@@ skipping 39 matching lines @@
     STATE_FLUSHING,
     STATE_PLAYING,
     STATE_ERROR
   };
 
   // Called when the MojoDemuxerStreamAdapter is ready to go (has a config,
   // pipe handle, etc) and can be handed off to a renderer for use.
   void OnStreamReady(const mojo::Closure& callback);
 
   // Called when |audio_renderer_| initialization has completed.
-  void OnRendererInitializeDone(const mojo::Closure& callback);
+  void OnRendererInitializeDone(const mojo::Closure& callback,
+                                PipelineStatus status);
 
   // Callback executed by filters to update statistics.
   void OnUpdateStatistics(const PipelineStatistics& stats);
 
   // Periodically polls the media time from the renderer and notifies the client
   // if the media time has changed since the last update.  If |force| is true,
   // the client is notified even if the time is unchanged.
   void UpdateMediaTime(bool force);
   void CancelPeriodicMediaTimeUpdates();
   void SchedulePeriodicMediaTimeUpdates();
@@ skipping 22 matching lines @@
 
   base::WeakPtr<MojoRendererService> weak_this_;
   base::WeakPtrFactory<MojoRendererService> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(MojoRendererService);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_MOJO_SERVICES_MOJO_RENDERER_SERVICE_H_