Refactor ExtensionOptionsGuestDelegate to have an ExtensionOptionsGuest

extensions/browser/guest_view/extension_options/extension_options_guest.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 EXTENSIONS_BROWSER_GUEST_VIEW_EXTENSION_OPTIONS_EXTENSION_OPTIONS_GUEST_H_
 #define EXTENSIONS_BROWSER_GUEST_VIEW_EXTENSION_OPTIONS_EXTENSION_OPTIONS_GUEST_H_
 
 #include "base/macros.h"
 #include "extensions/browser/extension_function_dispatcher.h"
 #include "extensions/browser/guest_view/extension_options/extension_options_guest_delegate.h"
 #include "extensions/browser/guest_view/guest_view.h"
 #include "url/gurl.h"
 
 namespace content {
 class BrowserContext;
 }
 
+namespace extensions {
+
 class ExtensionOptionsGuest
     : public extensions::GuestView<ExtensionOptionsGuest>,
       public extensions::ExtensionFunctionDispatcher::Delegate {
  public:
   static const char Type[];
   static extensions::GuestViewBase* Create(
       content::BrowserContext* browser_context,
       int guest_instance_id);
 
   // GuestViewBase implementation.
@@ skipping 43 matching lines @@
 
   scoped_ptr<extensions::ExtensionFunctionDispatcher>
       extension_function_dispatcher_;
   scoped_ptr<extensions::ExtensionOptionsGuestDelegate>
       extension_options_guest_delegate_;
   GURL options_page_;
 
   DISALLOW_COPY_AND_ASSIGN(ExtensionOptionsGuest);
 };
 
+}  // namespace extensions
+
 #endif  // EXTENSIONS_BROWSER_GUEST_VIEW_EXTENSION_OPTIONS_EXTENSION_OPTIONS_GUEST_H_