Add missing macros includes in media/.

media/cdm/ppapi/external_clear_key/clear_key_cdm.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.
 
 #ifndef MEDIA_CDM_PPAPI_EXTERNAL_CLEAR_KEY_CLEAR_KEY_CDM_H_
 #define MEDIA_CDM_PPAPI_EXTERNAL_CLEAR_KEY_CLEAR_KEY_CDM_H_
 
 #include <stdint.h>
 
 #include <string>
 #include <vector>
 
 #include "base/compiler_specific.h"
+#include "base/macros.h"
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/synchronization/lock.h"
 #include "media/cdm/aes_decryptor.h"
 #include "media/cdm/ppapi/external_clear_key/clear_key_cdm_common.h"
 
 // Enable this to use the fake decoder for testing.
 // TODO(tomfinegan): Move fake audio decoder into a separate class.
 #if 0
 #define CLEAR_KEY_CDM_USE_FAKE_AUDIO_DECODER
@@ skipping 182 matching lines @@
   scoped_ptr<CdmVideoDecoder> video_decoder_;
 
   scoped_ptr<FileIOTestRunner> file_io_test_runner_;
 
   DISALLOW_COPY_AND_ASSIGN(ClearKeyCdm);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_CDM_PPAPI_EXTERNAL_CLEAR_KEY_CLEAR_KEY_CDM_H_