Mojo: MOJO_OVERRIDE -> override in mojo/.

mojo/examples/apptest/example_client_application.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef MOJO_EXAMPLES_TEST_EXAMPLE_CLIENT_APPLICATION_H_
 #define MOJO_EXAMPLES_TEST_EXAMPLE_CLIENT_APPLICATION_H_
 
 #include "mojo/public/cpp/application/application_delegate.h"
 #include "mojo/public/cpp/application/interface_factory.h"
 #include "mojo/public/cpp/system/macros.h"
 
 namespace mojo {
 
 class ExampleClientApplication : public ApplicationDelegate {
  public:
   ExampleClientApplication();
   virtual ~ExampleClientApplication();
 
  private:
   // ApplicationDelegate implementation.
-  virtual void Initialize(ApplicationImpl* app) MOJO_OVERRIDE;
+  virtual void Initialize(ApplicationImpl* app) override;
 
   MOJO_DISALLOW_COPY_AND_ASSIGN(ExampleClientApplication);
 };
 
 }  // namespace mojo
 
 #endif  // MOJO_EXAMPLES_TEST_EXAMPLE_CLIENT_APPLICATION_H_