Move guest_view to extensions.

extensions/browser/guest_view/guest_view_manager.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 CHROME_BROWSER_GUEST_VIEW_GUEST_VIEW_MANAGER_H_
-#define CHROME_BROWSER_GUEST_VIEW_GUEST_VIEW_MANAGER_H_
+#ifndef EXTENSIONS_BROWSER_GUEST_VIEW_GUEST_VIEW_MANAGER_H_
+#define EXTENSIONS_BROWSER_GUEST_VIEW_GUEST_VIEW_MANAGER_H_
 
 #include <map>
 
 #include "base/gtest_prod_util.h"
 #include "base/lazy_instance.h"
 #include "base/macros.h"
 #include "content/public/browser/browser_plugin_guest_manager.h"
 #include "content/public/browser/site_instance.h"
 #include "content/public/browser/web_contents.h"
 
-class GuestViewBase;
-class GuestViewManagerFactory;
 class GURL;
 
 namespace content {
 class BrowserContext;
 class WebContents;
 }  // namespace content
 
+namespace extensions{
+class GuestViewBase;
+class GuestViewManagerFactory;
+
 class GuestViewManager : public content::BrowserPluginGuestManager,
                          public base::SupportsUserData::Data {
  public:
   explicit GuestViewManager(content::BrowserContext* context);
   virtual ~GuestViewManager();
 
   static GuestViewManager* FromBrowserContext(content::BrowserContext* context);
 
   // Overrides factory for testing. Default (NULL) value indicates regular
   // (non-test) environment.
@@ skipping 77 matching lines @@
   int last_instance_id_removed_;
   // The remaining instance IDs that are greater than
   // |last_instance_id_removed_| are kept here.
   std::set<int> removed_instance_ids_;
 
   content::BrowserContext* context_;
 
   DISALLOW_COPY_AND_ASSIGN(GuestViewManager);
 };
 
-#endif  // CHROME_BROWSER_GUEST_VIEW_GUEST_VIEW_MANAGER_H_
+}  // namespace extensions
+
+#endif  // EXTENSIONS_BROWSER_GUEST_VIEW_GUEST_VIEW_MANAGER_H_