Introduce VideoConfig/AudioConfig class for CMA backend

chromecast/media/cma/backend/video_pipeline_device.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_BACKEND_VIDEO_PIPELINE_DEVICE_H_
 #define CHROMECAST_MEDIA_CMA_BACKEND_VIDEO_PIPELINE_DEVICE_H_
 
 #include "base/callback.h"
 #include "base/macros.h"
 #include "chromecast/media/cma/backend/media_component_device.h"
 
 namespace gfx {
 class Size;
 }
 
-namespace media {
-class VideoDecoderConfig;
-}
-
 namespace chromecast {
 namespace media {
 class DecoderBufferBase;
+struct VideoConfig;
 
 // VideoPipelineDevice -
 //
 // Notes:
 // - Like a regular MediaComponentDevice, frames are possibly rendered only
 //   in the kRunning state.
 //   However, the first frame must be rendered regardless of the clock state:
 //   - no synchronization needed to display the first frame,
 //   - the clock rate has no impact on the presentation of the first frame.
 //
@@ skipping 11 matching lines @@
   VideoPipelineDevice();
   ~VideoPipelineDevice() override;
 
   // Registers |client| as the video specific event handler.
   virtual void SetVideoClient(const VideoClient& client) = 0;
 
   // Provide the video configuration.
   // Must be called before switching from |kStateUninitialized| to |kStateIdle|.
   // Afterwards, this can be invoked any time the configuration changes.
   // Returns true if the configuration is a supported configuration.
-  virtual bool SetConfig(const ::media::VideoDecoderConfig& config) = 0;
+  virtual bool SetConfig(const VideoConfig& config) = 0;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(VideoPipelineDevice);
 };
 
 }  // namespace media
 }  // namespace chromecast
 
 #endif  // CHROMECAST_MEDIA_CMA_BACKEND_VIDEO_PIPELINE_DEVICE_H_