Don't crash when granting permissions to active tab.

extensions/renderer/dispatcher_delegate.h

Index: extensions/renderer/dispatcher_delegate.h
diff --git a/extensions/renderer/dispatcher_delegate.h b/extensions/renderer/dispatcher_delegate.h
index 2f2f39d9b43b684d725b9f63b60a10801c8181eb..261e5804ccaaa9e1b71354abe534d1ca357ebf1f 100644
--- a/extensions/renderer/dispatcher_delegate.h
+++ b/extensions/renderer/dispatcher_delegate.h
@@ -65,24 +65,6 @@ class DispatcherDelegate {
   // TODO(rockot): This doesn't belong in a generic extensions system interface.
   // See http://crbug.com/368431.
   virtual void SetChannel(int channel) {}
-
-  // Clears extension permissions specific to a given tab.
-  // TODO(rockot): This doesn't belong in a generic extensions system interface.
-  // See http://crbug.com/368431.
-  virtual void ClearTabSpecificPermissions(
-      const extensions::Dispatcher* dispatcher,
-      int tab_id,
-      const std::vector<std::string>& extension_ids) {}
-
-  // Updates extension permissions specific to a given tab.
-  // TODO(rockot): This doesn't belong in a generic extensions system interface.
-  // See http://crbug.com/368431.
-  virtual void UpdateTabSpecificPermissions(
-      const extensions::Dispatcher* dispatcher,
-      const GURL& url,
-      int tab_id,
-      const std::string& extension_id,
-      const extensions::URLPatternSet& origin_set) {}
 };
 
 }  // namespace extensions