Update {virtual,override} to follow C++11 style in remoting.

remoting/host/setup/me2me_native_messaging_host.h

Index: remoting/host/setup/me2me_native_messaging_host.h
diff --git a/remoting/host/setup/me2me_native_messaging_host.h b/remoting/host/setup/me2me_native_messaging_host.h
index e1ddaed1a9b4a7ca967e8e9683bbe7b4cdf38cec..69441498b0ba272a48ed433e2cf939c541ffe8e9 100644
--- a/remoting/host/setup/me2me_native_messaging_host.h
+++ b/remoting/host/setup/me2me_native_messaging_host.h
@@ -135,8 +135,8 @@ class Me2MeNativeMessagingHost
    public:
     ElevatedChannelEventHandler(Me2MeNativeMessagingHost* host);
 
-    virtual void OnMessage(scoped_ptr<base::Value> message) override;
-    virtual void OnDisconnect() override;
+    void OnMessage(scoped_ptr<base::Value> message) override;
+    void OnDisconnect() override;
    private:
     Me2MeNativeMessagingHost* parent_;
   };