Consolidate icon loading on ChromeOS

chrome/browser/resources/chromeos/active_downloads.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.
 
 /**
  * Wrapper for chrome.send.
  */
 function chromeSend(func, arg) {
   if (arg == undefined)
     arg = '';
@@ skipping 215 matching lines @@
     var elem = document.createElement('li');
     elem.className = 'downloadrow';
     elem.id = this.path;
     elem.row = this;
     this.element = elem;
 
     list.append(this);
   },
 
   setDangerousIcon_: function(warning) {
+    var escapedPath = encodeURIComponent(this.path).replace(/'/g,'%27');
     this.icon.className = warning ? 'iconwarning' : 'icon';
     this.icon.style.background = warning ? '' :
-        'url(chrome://fileicon' + escape(this.path) +
-        '?iconsize=small) no-repeat';
+        'url(\'chrome://fileicon/' + escapedPath +
+        '?iconsize=small\') no-repeat';
   },
 
   /**
    * Create the row button for the left of the row.
    * This contains the icon, filename and error elements.
    * @private
    */
   createRowButton_: function () {
     this.rowbutton = createChild('div', 'rowbutton rowbg', this.element);
 
@@ skipping 373 matching lines @@
   update: function(result) {
     var row = this.getRow(result.file_path);
     if (!row && !DiscardResult(result))
       row = new DownloadRow(this, result);
 
     row && row.update(result);
   },
 };
 
 document.addEventListener('DOMContentLoaded', init);