Fix the origin access whitelist for extensions

extensions/renderer/dispatcher.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_RENDERER_DISPATCHER_H_
 #define EXTENSIONS_RENDERER_DISPATCHER_H_
 
 #include <map>
 #include <set>
 #include <string>
@@ skipping 174 matching lines @@
   void OnUsingWebRequestAPI(bool webrequest_used);
 
   // UserScriptSet::Observer implementation.
   virtual void OnUserScriptsUpdated(
       const std::set<std::string>& changed_extensions,
       const std::vector<UserScript*>& scripts) OVERRIDE;
 
   void UpdateActiveExtensions();
 
   // Sets up the host permissions for |extension|.
-  void UpdateOriginPermissions(const Extension* extension);
+  void InitOriginPermissions(const Extension* extension);
+
+  // Updates the host permissions for extension to include only those in
+  // |new_patterns|, and remove from |old_patterns| that are no longer allowed.
+  void UpdateOriginPermissions(const Extension* extension,
+                               const URLPatternSet& old_patterns,
+                               const URLPatternSet& new_patterns);
 
   // Enable custom element whitelist in Apps.
   void EnableCustomElementWhiteList();
 
   // Adds or removes bindings for every context belonging to |extension_id|, or
   // or all contexts if |extension_id| is empty.
   void UpdateBindings(const std::string& extension_id);
 
   void UpdateBindingsForContext(ScriptContext* context);
 
@@ skipping 86 matching lines @@
   // the observer is destroyed before the UserScriptSet.
   ScopedObserver<UserScriptSet, UserScriptSet::Observer>
       user_script_set_observer_;
 
   DISALLOW_COPY_AND_ASSIGN(Dispatcher);
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_RENDERER_DISPATCHER_H_