Fix some issues with extension messaging:

chrome/renderer/resources/extension_process_bindings.js

 // Copyright (c) 2009 The chrome Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 // -----------------------------------------------------------------------------
 // NOTE: If you change this file you need to touch renderer_resources.grd to
 // have your change take effect.
 // -----------------------------------------------------------------------------
 
 var chrome = chrome || {};
@@ skipping 472 matching lines @@
 
   // Sends (id, [childrenIds])
   chrome.bookmarks.onChildrenReordered =
       new chrome.Event("bookmark-children-reordered");
 
 
   //----------------------------------------------------------------------------
 
   // Self.
   chrome.self = chrome.self || {};
-  chrome.self.onConnect = new chrome.Event("channel-connect");
+
+  chromeHidden.onLoad.addListener(function (extensionId) {
+    chrome.self.onConnect = new chrome.Event("channel-connect:" + extensionId);
+  });
 
   chrome.self.getViews = function() {
     return GetViews();
   }
 })();