Add missing macros includes in media/.

media/base/wall_clock_time_source.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 MEDIA_BASE_WALL_CLOCK_TIME_SOURCE_H_
 #define MEDIA_BASE_WALL_CLOCK_TIME_SOURCE_H_
 
+#include "base/macros.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/synchronization/lock.h"
 #include "base/time/default_tick_clock.h"
 #include "media/base/media_export.h"
 #include "media/base/time_source.h"
 
 namespace media {
 
 // A time source that uses interpolation based on the system clock.
 class MEDIA_EXPORT WallClockTimeSource : public TimeSource {
@@ skipping 36 matching lines @@
   // TODO(scherkus): Remove internal locking from this class after access to
   // Renderer::CurrentMediaTime() is single threaded http://crbug.com/370634
   base::Lock lock_;
 
   DISALLOW_COPY_AND_ASSIGN(WallClockTimeSource);
 };
 
 }  // namespace media
 
 #endif  // MEDIA_BASE_WALL_CLOCK_TIME_SOURCE_H_