Add OVERRIDE to base/.

BUG=104314
TEST=no change

Review URL: http://codereview.chromium.org/8520018

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@110218 0039d316-1c4b-4281-b951-d872f2087c98


CrOS-Libchrome-Original-Commit: b1719466a057a1f4bbab43934aeb9e8df5dc59a4
diff --git a/base/files/file_path_watcher.h b/base/files/file_path_watcher.h
index 580ec99..ed17464 100644
--- a/base/files/file_path_watcher.h
+++ b/base/files/file_path_watcher.h
@@ -61,7 +61,7 @@
       delegate_->CancelOnMessageLoopThread();
     }
 
-    virtual void Run() {
+    virtual void Run() OVERRIDE {
       delegate_->CancelOnMessageLoopThread();
     }
    private: