[Chromecast] Upgrade to new CMA backend API

chromecast/media/cma/adapter/media_pipeline_backend_v1.h

Index: chromecast/media/cma/adapter/media_pipeline_backend_v1.h
diff --git a/chromecast/public/media/media_pipeline_backend.h b/chromecast/media/cma/adapter/media_pipeline_backend_v1.h
similarity index 79%
copy from chromecast/public/media/media_pipeline_backend.h
copy to chromecast/media/cma/adapter/media_pipeline_backend_v1.h
index cf64acce20882ecb004c6bc5f3af8a854b804f53..4d7d6e9bf350bcc403ce61148d4d2855a0c69eb3 100644
--- a/chromecast/public/media/media_pipeline_backend.h
+++ b/chromecast/media/cma/adapter/media_pipeline_backend_v1.h
@@ -2,8 +2,8 @@
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
-#ifndef CHROMECAST_PUBLIC_MEDIA_MEDIA_PIPELINE_BACKEND_H_
-#define CHROMECAST_PUBLIC_MEDIA_MEDIA_PIPELINE_BACKEND_H_
+#ifndef CHROMECAST_MEDIA_CMA_ADAPTER_MEDIA_PIPELINE_BACKEND_V1_H_
+#define CHROMECAST_MEDIA_CMA_ADAPTER_MEDIA_PIPELINE_BACKEND_V1_H_
 
 namespace chromecast {
 namespace media {
@@ -19,9 +19,9 @@ class VideoPipelineDevice;
 // tearing down the individual components correctly when it is destroyed.
 // A new MediaPipelineBackend will be instantiated for each media player
 // instance.
-class MediaPipelineBackend {
+class MediaPipelineBackendV1 {
  public:
-  virtual ~MediaPipelineBackend() {}
+  virtual ~MediaPipelineBackendV1() {}
 
   // Returns the platform-specific pipeline clock.
   virtual MediaClockDevice* GetClock() = 0;
@@ -36,4 +36,4 @@ class MediaPipelineBackend {
 }  // namespace media
 }  // namespace chromecast
 
-#endif  // CHROMECAST_MEDIA_CMA_BACKEND_MEDIA_PIPELINE_DEVICE_FACTORY_H_
+#endif  // CHROMECAST_MEDIA_CMA_ADAPTER_MEDIA_PIPELINE_BACKEND_V1_H_