Add support for favicon scale factor in WebUI

chrome/browser/resources/history/history.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.
 
 <include src="../uber/uber_utils.js">
 
 ///////////////////////////////////////////////////////////////////////////////
 // Globals:
 /** @const */ var RESULTS_PER_PAGE = 150;
 /** @const */ var MAX_SEARCH_DEPTH_MONTHS = 18;
@@ skipping 202 matching lines @@
     node.appendChild(document.createTextNode(content.slice(i)));
 };
 
 /**
  * @return {DOMObject} DOM representation for the title block.
  * @private
  */
 Visit.prototype.getTitleDOM_ = function() {
   var node = createElementWithClassName('div', 'title');
   node.style.backgroundImage =
-      'url(chrome://favicon/' + encodeURIForCSS(this.url_) + ')';
+      'url(chrome://favicon/size/16@' + window.devicePixelRatio + 'x/' +

[Evan Stade, 2012/09/18 13:54:05]

could you put this in util.js? something like GetFaviconUrl(size, url);

[kevers, 2012/09/18 17:31:03]

Done.

+      encodeURIForCSS(this.url_) + ')';
+  node.style.backgroundSize = '16px';
 
   var link = document.createElement('a');
   link.href = this.url_;
   link.id = 'id-' + this.id_;
   link.target = '_top';
 
   // Add a tooltip, since it might be ellipsized.
   // TODO(dubroy): Find a way to show the tooltip only when necessary.
   link.title = this.title_;
 
@@ skipping 933 matching lines @@
     historyView.reload();
 }
 
 // Add handlers to HTML elements.
 document.addEventListener('DOMContentLoaded', load);
 
 // This event lets us enable and disable menu items before the menu is shown.
 document.addEventListener('canExecute', function(e) {
   e.canExecute = true;
 });