replace 'virtual ... OVERRIDE' with '... override'

base/files/file_path_watcher_linux.cc

 // Copyright (c) 2012 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.
 
 #include "base/files/file_path_watcher.h"
 
 #include <errno.h>
 #include <string.h>
 #include <sys/inotify.h>
 #include <sys/ioctl.h>
@@ skipping 92 matching lines @@
                          bool created,
                          bool deleted,
                          bool is_dir);
 
  protected:
   virtual ~FilePathWatcherImpl() {}
 
  private:
   // Start watching |path| for changes and notify |delegate| on each change.
   // Returns true if watch for |path| has been added successfully.
-  virtual bool Watch(const FilePath& path,
-                     bool recursive,
-                     const FilePathWatcher::Callback& callback) OVERRIDE;
+  bool Watch(const FilePath& path,
+             bool recursive,
+             const FilePathWatcher::Callback& callback) override;
 
   // Cancel the watch. This unregisters the instance with InotifyReader.
-  virtual void Cancel() OVERRIDE;
+  void Cancel() override;
 
   // Cleans up and stops observing the message_loop() thread.
-  virtual void CancelOnMessageLoopThread() OVERRIDE;
+  void CancelOnMessageLoopThread() override;
 
   // Deletion of the FilePathWatcher will call Cancel() to dispose of this
   // object in the right thread. This also observes destruction of the required
   // cleanup thread, in case it quits before Cancel() is called.
-  virtual void WillDestroyCurrentMessageLoop() OVERRIDE;
+  void WillDestroyCurrentMessageLoop() override;
 
   // Inotify watches are installed for all directory components of |target_|. A
   // WatchEntry instance holds the watch descriptor for a component and the
   // subdirectory for that identifies the next component. If a symbolic link
   // is being watched, the target of the link is also kept.
   struct WatchEntry {
     explicit WatchEntry(const FilePath::StringType& dirname)
         : watch(InotifyReader::kInvalidWatch),
           subdir(dirname) {}
 
@@ skipping 523 matching lines @@
   return watches_[watches_.size() - 1].subdir.empty();
 }
 
 }  // namespace
 
 FilePathWatcher::FilePathWatcher() {
   impl_ = new FilePathWatcherImpl();
 }
 
 }  // namespace base