Add Chrome receiver app IDs to the feedback whitelist.

chrome/browser/resources/feedback/js/event_handler.js

 // Copyright 2013 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.
 
 /**
  * @type {number}
  * @const
  */
 var FEEDBACK_WIDTH = 500;
 /**
@@ skipping 38 matching lines @@
   'A74A4D44C7CFCD8844830E6140C8D763E12DD8F3', // Hangouts Extension
   '312745D9BF916161191143F6490085EEA0434997', // Hangouts Extension
   '53041A2FA309EECED01FFC751E7399186E860B2C', // Hangouts Extension
   '0F42756099D914A026DADFA182871C015735DD95', // Hangouts Extension
   '1B7734733E207CCE5C33BFAA544CA89634BF881F', // GLS nightly
   'E2ACA3D943A3C96310523BCDFD8C3AF68387E6B7', // GLS stable
   '11B478CEC461C766A2DC1E5BEEB7970AE06DC9C2', // http://crbug.com/463552
   '0EFB879311E9EFBB7C45251F89EC655711B1F6ED', // http://crbug.com/463552
   '9193D3A51E2FE33B496CDA53EA330423166E7F02', // http://crbug.com/463552
   'F9119B8B18C7C82B51E7BC6FF816B694F2EC3E89', // http://crbug.com/463552
+  '676A08383D875E51CE4C2308D875AE77199F1413', // Chrome Receiver App Dev

[rkc, 2015/04/03 22:49:33]

Please put the bug numbers here (as above). The app name doesn't necessarily
need to be here but the bug does.

[Alyssa, 2015/04/06 20:00:25]

Done.

+  '869A23E11B308AF45A68CC386C36AADA4BE44A01', // Chrome Receiver App Canary
 ];
 
 
 /**
  * Function to determine whether or not a given extension id is whitelisted to
  * invoke the feedback UI. If the extension is whitelisted, the callback to
  * start the Feedback UI will be called.
  * @param {string} id the id of the sender extension.
  * @param {Function} startFeedbackCallback The callback function that will
  *     will start the feedback UI.
@@ skipping 53 matching lines @@
       width: FEEDBACK_WIDTH,
       height: FEEDBACK_HEIGHT,
       hidden: true,
       resizable: false },
       function(appWindow) {});
 }
 
 chrome.runtime.onMessage.addListener(feedbackReadyHandler);
 chrome.runtime.onMessageExternal.addListener(requestFeedbackHandler);
 chrome.feedbackPrivate.onFeedbackRequested.addListener(startFeedbackUI);