Handle Escape key on constrained window.

chrome/browser/resources/certificate_viewer.js

 // Copyright (c) 2012 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.
 
 cr.define('cert_viewer', function() {
   'use strict';
 
   /**
    * Initialize the certificate viewer dialog by wiring up the close button,
    * substituting in translated strings and requesting certificate details.
@@ skipping 28 matching lines @@
     setTimeout(initializeDetailTab, 200);
 
     $('tabbox').addEventListener('selectedChange', function f(e) {
       $('tabbox').removeEventListener('selectedChange', f);
       initializeDetailTab();
     }, true);
 
     stripGtkAccessorKeys();
 
     $('export').onclick = exportCertificate;
-
-    // TODO(kochi): ESC key should be handled in the views window side.
-    document.addEventListener('keydown', function(e) {
-      if (e.keyCode == 27)  // ESC
-        chrome.send('DialogClose');
-    });
   }
 
   /**
    * Decorate a function so that it can only be invoked once.
    */
   function oneShot(fn) {
     var fired = false;
     return function() {
        if (fired) return;
        fired = true;
@@ skipping 145 matching lines @@
       chrome.send('exportCertificate', [item.detail.payload.index]);
   }
 
   return {
     initialize: initialize,
     getCertificateFields: getCertificateFields,
   };
 });
 
 document.addEventListener('DOMContentLoaded', cert_viewer.initialize);