Cast: Flow hw encoder initialization error to extensions API

media/cast/cast_sender_impl.h

 // Copyright 2013 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_CAST_CAST_SENDER_IMPL_H_
 #define MEDIA_CAST_CAST_SENDER_IMPL_H_
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "media/cast/cast_config.h"
 #include "media/cast/cast_defines.h"
@@ skipping 29 matching lines @@
   virtual void SetTargetPlayoutDelay(
       base::TimeDelta new_target_playout_delay) OVERRIDE;
 
   virtual ~CastSenderImpl();
 
   virtual scoped_refptr<AudioFrameInput> audio_frame_input() OVERRIDE;
   virtual scoped_refptr<VideoFrameInput> video_frame_input() OVERRIDE;
 
  private:
   void ReceivedPacket(scoped_ptr<Packet> packet);
+  void OnVideoInitialized(
+      const CastInitializationCallback& initialization_cb,
+      media::cast::CastInitializationStatus result);
 
   CastInitializationCallback initialization_callback_;
   scoped_ptr<AudioSender> audio_sender_;
   scoped_ptr<VideoSender> video_sender_;
   scoped_refptr<AudioFrameInput> audio_frame_input_;
   scoped_refptr<VideoFrameInput> video_frame_input_;
   scoped_refptr<CastEnvironment> cast_environment_;
   // The transport sender is owned by the owner of the CastSender, and should be
   // valid throughout the lifetime of the CastSender.
   CastTransportSender* const transport_sender_;
-  uint32 ssrc_of_audio_sender_;
-  uint32 ssrc_of_video_sender_;
 
   // NOTE: Weak pointers must be invalidated before all other member variables.
   base::WeakPtrFactory<CastSenderImpl> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(CastSenderImpl);
 };
 
 }  // namespace cast
 }  // namespace media
 
 #endif  // MEDIA_CAST_CAST_SENDER_IMPL_H_