[Chromecast] Upgrade to new CMA backend API

chromecast/media/cma/adapter/media_clock_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_PUBLIC_MEDIA_MEDIA_CLOCK_DEVICE_H_
-#define CHROMECAST_PUBLIC_MEDIA_MEDIA_CLOCK_DEVICE_H_
+#ifndef CHROMECAST_MEDIA_CMA_ADAPTER_MEDIA_CLOCK_DEVICE_H_
+#define CHROMECAST_MEDIA_CMA_ADAPTER_MEDIA_CLOCK_DEVICE_H_
 
 #include <string>
 
 namespace chromecast {
 namespace media {
 
 // Interface for platform-specific pipeline clock.
 // Pipeline clocks follow this state machine:
 //                      -------------------
 //                      |                 |
@@ skipping 36 matching lines @@
   virtual bool SetRate(float rate) = 0;
 
   // Retrieves the media clock time in microseconds.
   // Will only be invoked in states kStateIdle or kStateRunning.
   virtual int64_t GetTimeMicroseconds() = 0;
 };
 
 }  // namespace media
 }  // namespace chromecast
 
-#endif  // CHROMECAST_MEDIA_CMA_BACKEND_MEDIA_CLOCK_DEVICE_H_
+#endif  // CHROMECAST_MEDIA_CMA_ADAPTER_MEDIA_CLOCK_DEVICE_H_