Add ability to limit when context menu items appear with url patterns....

chrome/renderer/resources/extension_process_bindings.js

 // Copyright (c) 2010 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.
 
 // This script contains privileged chrome extension related javascript APIs.
 // It is loaded by pages whose URL has the chrome-extension protocol.
 
 var chrome = chrome || {};
 (function() {
   native function GetExtensionAPIDefinition();
@@ skipping 261 matching lines @@
       if (chromeHidden.contextMenus.listening) {
         return;
       }
       chromeHidden.contextMenus.listening = true;
       chromeHidden.contextMenus.event.addListener(function() {
         // An extension context menu item has been clicked on - fire the onclick
         // if there is one.
         var id = arguments[0].menuItemId;
         var onclick = chromeHidden.contextMenus.handlers[id];
         if (onclick) {
-          onclick.apply(onclick, arguments);
+          onclick.apply(null, arguments);
         }
       });
     };
   }
 
   function setupOmniboxEvents(extensionId) {
     chrome.experimental.omnibox.onInputChanged.dispatch =
         function(text, requestId) {
       var suggestCallback = function(suggestions) {
         chrome.experimental.omnibox.sendSuggestions(requestId, suggestions);
@@ skipping 408 matching lines @@
     setupHiddenContextMenuEvent(extensionId);
     setupOmniboxEvents(extensionId);
   });
 
   if (!chrome.experimental)
     chrome.experimental = {};
 
   if (!chrome.experimental.accessibility)
     chrome.experimental.accessibility = {};
 })();