Cleanup: Fix content header include guards.

content/browser/fileapi/mock_file_update_observer.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 WEBKIT_BROWSER_FILEAPI_MOCK_FILE_UPDATE_OBSERVER_H_
-#define WEBKIT_BROWSER_FILEAPI_MOCK_FILE_UPDATE_OBSERVER_H_
+#ifndef CONTENT_BROWSER_FILEAPI_MOCK_FILE_UPDATE_OBSERVER_H_
+#define CONTENT_BROWSER_FILEAPI_MOCK_FILE_UPDATE_OBSERVER_H_
 
 #include <map>
 
 #include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "storage/browser/fileapi/file_observers.h"
 #include "storage/browser/fileapi/file_system_url.h"
 #include "storage/browser/fileapi/task_runner_bound_observer_list.h"
 
 namespace storage {
@@ skipping 23 matching lines @@
  private:
   std::map<FileSystemURL, int, FileSystemURL::Comparator> start_update_count_;
   std::map<FileSystemURL, int, FileSystemURL::Comparator> end_update_count_;
   bool is_ready_;
 
   DISALLOW_COPY_AND_ASSIGN(MockFileUpdateObserver);
 };
 
 }  // namespace storage
 
-#endif  // WEBKIT_BROWSER_FILEAPI_MOCK_FILE_UPDATE_OBSERVER_H_
+#endif  // CONTENT_BROWSER_FILEAPI_MOCK_FILE_UPDATE_OBSERVER_H_