Load CMA backend from shared library

chromecast/media/cma/pipeline/media_pipeline_impl.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 CHROMECAST_MEDIA_CMA_PIPELINE_MEDIA_PIPELINE_IMPL_H_
 #define CHROMECAST_MEDIA_CMA_PIPELINE_MEDIA_PIPELINE_IMPL_H_
 
 #include "base/basictypes.h"
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/memory/weak_ptr.h"
 #include "base/threading/thread_checker.h"
 #include "chromecast/media/cma/pipeline/load_type.h"
 #include "chromecast/media/cma/pipeline/media_pipeline.h"
 #include "chromecast/media/cma/pipeline/media_pipeline_client.h"
 #include "media/base/serial_runner.h"
 
 namespace chromecast {
 namespace media {
 class AudioPipelineImpl;
 class BrowserCdmCast;
 class BufferingController;
 class MediaClockDevice;
-class MediaPipelineDevice;
+class MediaPipelineBackend;
 class VideoPipelineImpl;
 
 class MediaPipelineImpl : public MediaPipeline {
  public:
   MediaPipelineImpl();
   ~MediaPipelineImpl() override;
 
   // Initialize the media pipeline: the pipeline is configured based on
   // |load_type|.
   void Initialize(LoadType load_type,
-                  scoped_ptr<MediaPipelineDevice> media_pipeline_device);
+                  scoped_ptr<MediaPipelineBackend> media_pipeline_backend);
 
   // MediaPipeline implementation.
   void SetClient(const MediaPipelineClient& client) override;
   void SetCdm(int cdm_id) override;
   AudioPipeline* GetAudioPipeline() const override;
   VideoPipeline* GetVideoPipeline() const override;
   void InitializeAudio(
       const ::media::AudioDecoderConfig& config,
       scoped_ptr<CodedFrameProvider> frame_provider,
       const ::media::PipelineStatusCB& status_cb) override;
@@ skipping 22 matching lines @@
 
   void OnError(::media::PipelineStatus error);
 
   base::ThreadChecker thread_checker_;
 
   MediaPipelineClient client_;
 
   scoped_ptr<BufferingController> buffering_controller_;
 
   // Interface with the underlying hardware media pipeline.
-  scoped_ptr<MediaPipelineDevice> media_pipeline_device_;
+  scoped_ptr<MediaPipelineBackend> media_pipeline_backend_;
   MediaClockDevice* clock_device_;
 
   bool has_audio_;
   bool has_video_;
   scoped_ptr<AudioPipelineImpl> audio_pipeline_;
   scoped_ptr<VideoPipelineImpl> video_pipeline_;
   scoped_ptr< ::media::SerialRunner> pending_flush_callbacks_;
 
   // Playback rate set by the upper layer.
   float target_playback_rate_;
@@ skipping 14 matching lines @@
   base::WeakPtr<MediaPipelineImpl> weak_this_;
   base::WeakPtrFactory<MediaPipelineImpl> weak_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(MediaPipelineImpl);
 };
 
 }  // namespace media
 }  // namespace chromecast
 
 #endif  // CHROMECAST_MEDIA_CMA_PIPELINE_MEDIA_PIPELINE_IMPL_H_