Mojo: Convert the remaining OVERRIDEs to override in mojo/.

mojo/examples/surfaces_app/child_app.cc

 // 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.
 
+#include "base/macros.h"
 #include "mojo/application/application_runner_chromium.h"
 #include "mojo/examples/surfaces_app/child_impl.h"
 #include "mojo/public/c/system/main.h"
 #include "mojo/public/cpp/application/application_connection.h"
 #include "mojo/public/cpp/application/application_delegate.h"
 #include "mojo/public/cpp/application/application_impl.h"
 #include "mojo/public/cpp/bindings/string.h"
 
 namespace mojo {
 namespace examples {
 
 class ChildApp : public ApplicationDelegate, public InterfaceFactory<Child> {
  public:
   ChildApp() {}
   virtual ~ChildApp() {}
 
-  virtual void Initialize(ApplicationImpl* app) OVERRIDE {
+  virtual void Initialize(ApplicationImpl* app) override {
     surfaces_service_connection_ =
         app->ConnectToApplication("mojo:mojo_surfaces_service");
   }
 
   // ApplicationDelegate implementation.
   virtual bool ConfigureIncomingConnection(
-      ApplicationConnection* connection) OVERRIDE {
+      ApplicationConnection* connection) override {
     connection->AddService(this);
     return true;
   }
 
   // InterfaceFactory<Child> implementation.
   virtual void Create(ApplicationConnection* connection,
-                      InterfaceRequest<Child> request) OVERRIDE {
+                      InterfaceRequest<Child> request) override {
     BindToRequest(new ChildImpl(surfaces_service_connection_), &request);
   }
 
  private:
   ApplicationConnection* surfaces_service_connection_;
 
   DISALLOW_COPY_AND_ASSIGN(ChildApp);
 };
 
 }  // namespace examples
 }  // namespace mojo
 
 MojoResult MojoMain(MojoHandle shell_handle) {
   mojo::ApplicationRunnerChromium runner(new mojo::examples::ChildApp);
   return runner.Run(shell_handle);
 }