Tag IPC::Channel::Listener implementations with OVERRIDE

chrome/browser/automation/automation_provider.h

Index: chrome/browser/automation/automation_provider.h
diff --git a/chrome/browser/automation/automation_provider.h b/chrome/browser/automation/automation_provider.h
index b389b88e0f8301200c16942fa22f73d53ec4afbc..9f3cd1fba6d394a62a5f80a15b7d1f2200ee1db8 100644
--- a/chrome/browser/automation/automation_provider.h
+++ b/chrome/browser/automation/automation_provider.h
@@ -127,11 +127,11 @@ class AutomationProvider
   void AddLoginHandler(NavigationController* tab, LoginHandler* handler);
   void RemoveLoginHandler(NavigationController* tab);
 
-  // IPC implementations
-  virtual bool Send(IPC::Message* msg);
-  virtual void OnChannelConnected(int pid);
-  virtual bool OnMessageReceived(const IPC::Message& msg);
-  virtual void OnChannelError();
+  // IPC::Channel::Listener implementation.
+  virtual bool Send(IPC::Message* msg) OVERRIDE;
+  virtual void OnChannelConnected(int pid) OVERRIDE;
+  virtual bool OnMessageReceived(const IPC::Message& msg) OVERRIDE;
+  virtual void OnChannelError() OVERRIDE;
 
   IPC::Message* reply_message_release() {
     IPC::Message* reply_message = reply_message_;