Add OVERRIDE to chrome/browser/.

BUG=104314
TEST=no change

Review URL: http://codereview.chromium.org/8612007

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@110939 0039d316-1c4b-4281-b951-d872f2087c98
diff --git a/chrome/browser/net/predictor.h b/chrome/browser/net/predictor.h
index bb91587..2ec8dc0 100644
--- a/chrome/browser/net/predictor.h
+++ b/chrome/browser/net/predictor.h
@@ -505,8 +505,8 @@
   virtual ~SimplePredictor() {}
   virtual void InitNetworkPredictor(PrefService* user_prefs,
                                     PrefService* local_state,
-                                    IOThread* io_thread);
-  virtual void ShutdownOnUIThread(PrefService* user_prefs);
+                                    IOThread* io_thread) OVERRIDE;
+  virtual void ShutdownOnUIThread(PrefService* user_prefs) OVERRIDE;
 };
 
 }  // namespace chrome_browser_net