[Chromecast] Upgrade to new CMA backend API

chromecast/media/cma/backend/media_pipeline_backend_default.h

 // Copyright 2015 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_BACKEND_MEDIA_PIPELINE_DEVICE_FACTORY_DEFAULT_H_
-#define CHROMECAST_MEDIA_CMA_BACKEND_MEDIA_PIPELINE_DEVICE_FACTORY_DEFAULT_H_
+#ifndef CHROMECAST_MEDIA_CMA_BACKEND_MEDIA_PIPELINE_BACKEND_DEFAULT_H_
+#define CHROMECAST_MEDIA_CMA_BACKEND_MEDIA_PIPELINE_BACKEND_DEFAULT_H_
 
-#include "base/memory/scoped_ptr.h"
+#include "base/macros.h"
+#include "base/time/time.h"
 #include "chromecast/public/media/media_pipeline_backend.h"
-#include "chromecast/public/media/media_pipeline_device_params.h"
 
 namespace chromecast {
 namespace media {
 
 // Factory that instantiates default (stub) media pipeline device elements.
 class MediaPipelineBackendDefault : public MediaPipelineBackend {
  public:
-  MediaPipelineBackendDefault(const MediaPipelineDeviceParams& params);
+  MediaPipelineBackendDefault();
   ~MediaPipelineBackendDefault() override;
 
-  // MediaPipelineBackend implementation
-  MediaClockDevice* GetClock() override;
-  AudioPipelineDevice* GetAudio() override;
-  VideoPipelineDevice* GetVideo() override;
+  // MediaPipelineBackend implementation:
+  AudioDecoder* CreateAudioDecoder() override;
+  VideoDecoder* CreateVideoDecoder() override;
+  bool Initialize(Delegate* delegate) override;
+  bool Start(int64_t start_pts) override;
+  bool Stop() override;
+  bool Pause() override;
+  bool Resume() override;
+  int64_t GetCurrentPts() override;
+  bool SetPlaybackRate(float rate) override;
 
  private:
-  MediaPipelineDeviceParams params_;
-  scoped_ptr<MediaClockDevice> clock_;
-  scoped_ptr<AudioPipelineDevice> audio_;
-  scoped_ptr<VideoPipelineDevice> video_;
+  class AudioDecoderDefault;
+  class VideoDecoderDefault;
+
+  base::TimeDelta start_pts_;
+  base::TimeTicks start_clock_;
+  bool running_;
+  float rate_;
+
+  AudioDecoderDefault* audio_decoder_;
+  VideoDecoderDefault* video_decoder_;
 
   DISALLOW_COPY_AND_ASSIGN(MediaPipelineBackendDefault);
 };
 
 }  // namespace media
 }  // namespace chromecast
 
-#endif  // CHROMECAST_MEDIA_CMA_BACKEND_MEDIA_PIPELINE_DEVICE_FACTORY_DEFAULT_H_
+#endif  // CHROMECAST_MEDIA_CMA_BACKEND_MEDIA_PIPELINE_BACKEND_DEFAULT_H_