Make favicons for about:history and about:bookmarks switch from lodpi to hidpi when dragging browser

chrome/browser/resources/ntp_search/thumbnail_page.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('ntp', function() {
   'use strict';
 
   var Tile = ntp.Tile;
   var TilePage = ntp.TilePage;
 
@@ skipping 73 matching lines @@
 
       var thumbnailImage = this.querySelector('.thumbnail-image');
 
       var banner = thumbnailImage.querySelector('.thumbnail-banner');
       if (banner)
         thumbnailImage.removeChild(banner);
 
       var favicon = this.querySelector('.thumbnail-favicon') ||
                     this.ownerDocument.createElement('div');
       favicon.className = 'thumbnail-favicon';
-      favicon.style.backgroundImage = url(getFaviconUrl(dataUrl));
+      favicon.style.backgroundImage = getFaviconImageSet(dataUrl);
       this.appendChild(favicon);
 
       var self = this;
       var image = new Image();
 
       // If the thumbnail image fails to load, show an alternative presentation.
       // TODO(jeremycho): Move to a separate function?
       image.onerror = function() {
         banner = thumbnailImage.querySelector('.thumbnail-banner') ||
             self.ownerDocument.createElement('div');
@@ skipping 68 matching lines @@
     shouldAcceptDrag: function(e) {
       return false;
     },
   };
 
   return {
     Thumbnail: Thumbnail,
     ThumbnailPage: ThumbnailPage,
   };
 });