Move GuestView layer in browser to components

components/guest_view/browser/guest_view_manager_factory.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_GUEST_VIEW_MANAGER_FACTORY_H_
-#define EXTENSIONS_BROWSER_GUEST_VIEW_GUEST_VIEW_MANAGER_FACTORY_H_
+#ifndef COMPONENTS_GUEST_VIEW_BROWSER_GUEST_VIEW_MANAGER_FACTORY_H_
+#define COMPONENTS_GUEST_VIEW_BROWSER_GUEST_VIEW_MANAGER_FACTORY_H_
 
 namespace content {
 class BrowserContext;
 }
 
 namespace guestview {
 class GuestViewManagerDelegate;
 }  // namespace guestview
 
-namespace extensions {
+namespace guestview {
 
 class GuestViewManager;
+class GuestViewManagerDelegate;
 
 class GuestViewManagerFactory {
  public:
   virtual GuestViewManager* CreateGuestViewManager(
       content::BrowserContext* context,
       scoped_ptr<guestview::GuestViewManagerDelegate> delegate) = 0;
 
  protected:
   virtual ~GuestViewManagerFactory() {}
 };
 
-}  // namespace extensions
+}  // namespace guestview
 
-#endif  // EXTENSIONS_BROWSER_GUEST_VIEW_GUEST_VIEW_MANAGER_FACTORY_H_
+#endif  // COMPONENTS_GUEST_VIEW_BROWSER_GUEST_VIEW_MANAGER_FACTORY_H_