Add missing macros includes in media/.

media/cast/test/skewed_single_thread_task_runner.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_CAST_TEST_SKEWED_TASK_RUNNER_H_
 #define MEDIA_CAST_TEST_SKEWED_TASK_RUNNER_H_
 
 #include <map>
 
+#include "base/macros.h"
 #include "base/single_thread_task_runner.h"
 #include "base/test/simple_test_tick_clock.h"
 #include "base/test/test_pending_task.h"
 
 namespace media {
 namespace cast {
 namespace test {
 
 // This class wraps a SingleThreadTaskRunner, and allows you to scale
 // the delay for any posted task by a factor. The factor is changed by
@@ skipping 27 matching lines @@
   scoped_refptr<base::SingleThreadTaskRunner> task_runner_;
 
   DISALLOW_COPY_AND_ASSIGN(SkewedSingleThreadTaskRunner);
 };
 
 }  // namespace test
 }  // namespace cast
 }  // namespace media
 
 #endif  // MEDIA_CAST_TEST_SKEWED_TASK_RUNNER_H_