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

base/files/file_path_watcher_win.cc

Index: base/files/file_path_watcher_win.cc
diff --git a/base/files/file_path_watcher_win.cc b/base/files/file_path_watcher_win.cc
index a30214045c24ef9e24e8d216b334655374723055..ab42a2b45370c551e787edb058a842a1ba5f0e0f 100644
--- a/base/files/file_path_watcher_win.cc
+++ b/base/files/file_path_watcher_win.cc
@@ -27,15 +27,15 @@ class FilePathWatcherImpl : public FilePathWatcher::PlatformDelegate,
         recursive_watch_(false) {}
 
   // FilePathWatcher::PlatformDelegate overrides.
-  virtual bool Watch(const FilePath& path,
-                     bool recursive,
-                     const FilePathWatcher::Callback& callback) OVERRIDE;
-  virtual void Cancel() OVERRIDE;
+  bool Watch(const FilePath& path,
+             bool recursive,
+             const FilePathWatcher::Callback& callback) override;
+  void Cancel() 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;
 
   // Callback from MessageLoopForIO.
   virtual void OnObjectSignaled(HANDLE object);
@@ -58,7 +58,7 @@ class FilePathWatcherImpl : public FilePathWatcher::PlatformDelegate,
   void DestroyWatch();
 
   // Cleans up and stops observing the |message_loop_| thread.
-  void CancelOnMessageLoopThread() OVERRIDE;
+  void CancelOnMessageLoopThread() override;
 
   // Callback to notify upon changes.
   FilePathWatcher::Callback callback_;