[Chromecast] Upgrade to new CMA backend API

chromecast/media/cma/pipeline/video_pipeline.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_VIDEO_PIPELINE_H_
 #define CHROMECAST_MEDIA_CMA_PIPELINE_VIDEO_PIPELINE_H_
 
 #include "base/macros.h"
 
 namespace chromecast {
 namespace media {
-struct VideoPipelineClient;
+struct RendererVideoPipelineClient;
 
 class VideoPipeline {
  public:
   VideoPipeline();
   virtual ~VideoPipeline();
 
-  virtual void SetClient(const VideoPipelineClient& client) = 0;
+  virtual void SetClient(const RendererVideoPipelineClient& client) = 0;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(VideoPipeline);
 };
 
 }  // namespace media
 }  // namespace chromecast
 
 #endif  // CHROMECAST_MEDIA_CMA_PIPELINE_VIDEO_PIPELINE_H_