Clean up media header include guards

media/capture/content/animated_content_sampler.h

 // Copyright (c) 2015 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_CAPTURE_ANIMATED_CONTENT_SAMPLER_H_
-#define MEDIA_CAPTURE_ANIMATED_CONTENT_SAMPLER_H_
+#ifndef MEDIA_CAPTURE_CONTENT_ANIMATED_CONTENT_SAMPLER_H_
+#define MEDIA_CAPTURE_CONTENT_ANIMATED_CONTENT_SAMPLER_H_
 
 #include <deque>
 
 #include "base/time/time.h"
 #include "media/base/media_export.h"
 #include "ui/gfx/geometry/rect.h"
 
 namespace media {
 
 // Analyzes a sequence of events to detect the presence of constant frame rate
@@ skipping 130 matching lines @@
   // of time (one microsecond) equals one token; and, tokens are only taken from
   // the bucket when at least a full sampling period's worth are present.
   base::TimeDelta token_bucket_;
 
   // The rewritten frame timestamp for the latest event.
   base::TimeTicks frame_timestamp_;
 };
 
 }  // namespace media
 
-#endif  // MEDIA_CAPTURE_ANIMATED_CONTENT_SAMPLER_H_
+#endif  // MEDIA_CAPTURE_CONTENT_ANIMATED_CONTENT_SAMPLER_H_