Clean up media header include guards

media/audio/cras/cras_unified.h

 // Copyright 2013 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.
 //
 // Creates a unified stream based on the cras (ChromeOS audio server) interface.
 //
 // CrasUnifiedStream object is *not* thread-safe and should only be used
 // from the audio thread.
 
-#ifndef MEDIA_AUDIO_LINUX_CRAS_UNIFIED_H_
-#define MEDIA_AUDIO_LINUX_CRAS_UNIFIED_H_
+#ifndef MEDIA_AUDIO_CRAS_CRAS_UNIFIED_H_
+#define MEDIA_AUDIO_CRAS_CRAS_UNIFIED_H_
 
 #include <cras_client.h>
 #include <stddef.h>
 #include <stdint.h>
 
 #include <memory>
 
 #include "base/compiler_specific.h"
 #include "base/macros.h"
 #include "media/audio/audio_io.h"
@@ skipping 89 matching lines @@
   std::unique_ptr<AudioBus> output_bus_;
 
   // Direciton of the stream.
   CRAS_STREAM_DIRECTION stream_direction_;
 
   DISALLOW_COPY_AND_ASSIGN(CrasUnifiedStream);
 };
 
 }  // namespace media
 
-#endif  // MEDIA_AUDIO_LINUX_CRAS_UNIFIED_H_
+#endif  // MEDIA_AUDIO_CRAS_CRAS_UNIFIED_H_