Implement sidebar support for extension action popups

chrome/browser/extensions/extension_view_host_factory.h

 // Copyright 2013 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_EXTENSIONS_EXTENSION_VIEW_HOST_FACTORY_H_
 #define CHROME_BROWSER_EXTENSIONS_EXTENSION_VIEW_HOST_FACTORY_H_
 
 #include "base/basictypes.h"
 
 class Browser;
@@ skipping 10 matching lines @@
  public:
   // Creates a new ExtensionHost with its associated view, grouping it in the
   // appropriate SiteInstance (and therefore process) based on the URL and
   // profile.
   static ExtensionViewHost* CreatePopupHost(const GURL& url, Browser* browser);
 
   // Some dialogs may not be associated with a particular browser window and
   // hence only require a |profile|.
   static ExtensionViewHost* CreateDialogHost(const GURL& url, Profile* profile);
 
+  // Creates a new ExtensionHost with its associated view, grouping it in the
+  // appropriate SiteInstance (and therefore process) based on the URL and
+  // profile.
+  static ExtensionViewHost* CreateSidebarHost(const GURL& url,
+                                              Browser* browser);
+
  private:
   DISALLOW_COPY_AND_ASSIGN(ExtensionViewHostFactory);
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_VIEW_HOST_FACTORY_H_