Clean up media header include guards

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_
+#ifndef MEDIA_CAST_TEST_SKEWED_SINGLE_THREAD_TASK_RUNNER_H_
+#define MEDIA_CAST_TEST_SKEWED_SINGLE_THREAD_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 {
@@ skipping 30 matching lines @@
   double skew_;
   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_
+#endif  // MEDIA_CAST_TEST_SKEWED_SINGLE_THREAD_TASK_RUNNER_H_