Use talk gadget blank page for bounce.

remoting/webapp/me2mom/oauth2.js

 // Copyright (c) 2011 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.
 
 /**
  * @fileoverview
  * OAuth2 class that handles retrieval/storage of an OAuth2 token.
  *
  * Uses a content script to trampoline the OAuth redirect page back into the
  * extension context.  This works around the lack of native support for
@@ skipping 16 matching lines @@
 // Constants for parameters used in retrieving the OAuth2 credentials.
 remoting.OAuth2.prototype.CLIENT_ID_ =
       '440925447803-2pi3v45bff6tp1rde2f7q6lgbor3o5uj.' +
       'apps.googleusercontent.com';
 remoting.OAuth2.prototype.CLIENT_SECRET_ = 'W2ieEsG-R1gIA4MMurGrgMc_';
 remoting.OAuth2.prototype.SCOPE_ =
       'https://www.googleapis.com/auth/chromoting ' +
       'https://www.googleapis.com/auth/googletalk ' +
       'https://www.googleapis.com/auth/userinfo#email';
 remoting.OAuth2.prototype.REDIRECT_URI_ =
-      'https://chromoting-httpxmpp-oauth2-dev.corp.google.com' +
-      '/oauth2_trampoline';
+      'https://talkgadget.google.com/talkgadget/blank';
 remoting.OAuth2.prototype.OAUTH2_TOKEN_ENDPOINT_ =
     'https://accounts.google.com/o/oauth2/token';
 
 /** @return {boolean} */
 remoting.OAuth2.prototype.isAuthenticated = function() {
   if (this.getRefreshToken()) {
     return true;
   }
   return false;
 }
@@ skipping 213 matching lines @@
         throw "Unable to get access token.";
       }
       myfunc(that.getAccessToken());
     });
     return;
   }
 
   myfunc(this.getAccessToken());
 }
 }());