Add OVERRIDE to base/.

base/files/file_path_watcher.h

 // Copyright (c) 2011 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.
 
 // This module provides a way to monitor a file or directory for changes.
 
 #ifndef BASE_FILES_FILE_PATH_WATCHER_H_
 #define BASE_FILES_FILE_PATH_WATCHER_H_
 #pragma once
 
@@ skipping 43 matching lines @@
   // A custom Task that always cleans up the PlatformDelegate, either when
   // executed or when deleted without having been executed at all, as can
   // happen during shutdown.
   class CancelTask : public Task {
    public:
     CancelTask(PlatformDelegate* delegate): delegate_(delegate) {}
     virtual ~CancelTask() {
       delegate_->CancelOnMessageLoopThread();
     }
 
-    virtual void Run() {
+    virtual void Run() OVERRIDE {
       delegate_->CancelOnMessageLoopThread();
     }
    private:
     scoped_refptr<PlatformDelegate> delegate_;
 
     DISALLOW_COPY_AND_ASSIGN(CancelTask);
   };
 
   // Used internally to encapsulate different members on different platforms.
   class PlatformDelegate : public base::RefCountedThreadSafe<PlatformDelegate> {
@@ skipping 45 matching lines @@
  private:
   scoped_refptr<PlatformDelegate> impl_;
 
   DISALLOW_COPY_AND_ASSIGN(FilePathWatcher);
 };
 
 }  // namespace files
 }  // namespace base
 
 #endif  // BASE_FILES_FILE_PATH_WATCHER_H_