[Extensions] Propagate activeTab hosts to extension background pages

extensions/renderer/dispatcher.h

Index: extensions/renderer/dispatcher.h
diff --git a/extensions/renderer/dispatcher.h b/extensions/renderer/dispatcher.h
index 021fc943157202a9e092501fb8dc1edca0cf9adf..b022e5b069e77a01a7863bd8128fa1d24b635ef0 100644
--- a/extensions/renderer/dispatcher.h
+++ b/extensions/renderer/dispatcher.h
@@ -189,6 +189,13 @@ class Dispatcher : public content::RenderProcessObserver,
   void OnTransferBlobs(const std::vector<std::string>& blob_uuids);
   void OnUnloaded(const std::string& id);
   void OnUpdatePermissions(const ExtensionMsg_UpdatePermissions_Params& params);
+  void OnUpdateTabSpecificPermissions(const GURL& visible_url,
+                                      const std::string& extension_id,
+                                      const URLPatternSet& new_hosts,
+                                      int tab_id);
+  void OnClearTabSpecificPermissions(
+      const std::vector<std::string>& extension_ids,
+      int tab_id);
   void OnUsingWebRequestAPI(bool webrequest_used);
 
   // UserScriptSetManager::Observer implementation.
@@ -200,11 +207,10 @@ class Dispatcher : public content::RenderProcessObserver,
   // Sets up the host permissions for |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.
+  // Updates the host permissions for extension to include only those currently
+  // in the extensions permissions, and removes any others in |old_patterns|.
   void UpdateOriginPermissions(const Extension* extension,
-                               const URLPatternSet& old_patterns,
-                               const URLPatternSet& new_patterns);
+                               const URLPatternSet& old_patterns);
 
   // Enable custom element whitelist in Apps.
   void EnableCustomElementWhiteList();