views/examples: Clean up cpplint warnings.

ui/views/examples/content_client/examples_main_delegate.h

 // Copyright (c) 2012 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 UI_VIEWS_EXAMPLES_CONTENT_CLIENT_EXAMPLES_MAIN_DELEGATE_H_
 #define UI_VIEWS_EXAMPLES_CONTENT_CLIENT_EXAMPLES_MAIN_DELEGATE_H_
 #pragma once
 
+#include <string>
+
+#include "base/basictypes.h"
 #include "base/compiler_specific.h"
 #include "base/memory/scoped_ptr.h"
+#include "content/public/app/content_main_delegate.h"
 #include "content/shell/shell_content_client.h"
-#include "content/public/app/content_main_delegate.h"
 
 namespace content {
 class ShellContentRendererClient;
 class ShellContentPluginClient;
 class ShellContentUtilityClient;
 }
 
 namespace views {
 namespace examples {
 
@@ skipping 32 matching lines @@
   scoped_ptr<content::ShellContentUtilityClient> utility_client_;
   content::ShellContentClient content_client_;
 
   DISALLOW_COPY_AND_ASSIGN(ExamplesMainDelegate);
 };
 
 }  // namespace examples
 }  // namespace views
 
 #endif  // UI_VIEWS_EXAMPLES_CONTENT_CLIENT_EXAMPLES_MAIN_DELEGATE_H_