[Chromecast] Upgrade to new CMA backend API

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