Cleanup: Extract icon related methods outside of util.js

chrome/browser/resources/md_history/history_item.js

 // Copyright 2015 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.
 
 Polymer({
   is: 'history-item',
 
   properties: {
     // Underlying HistoryEntry data for this item. Contains read-only fields
     // from the history backend, as well as fields computed by history-list.
@@ skipping 69 matching lines @@
     // Stops the 'tap' event from closing the menu when it opens.
     e.stopPropagation();
   },
 
   /**
    * Set the favicon image, based on the URL of the history item.
    * @private
    */
   showIcon_: function() {
     this.$.icon.style.backgroundImage =
-        getFaviconImageSet(this.item.url);
+        cr.icon.getFaviconImageSet(this.item.url);
   },
 
   /**
    * Updates the page title. If the result was from a search, highlights any
    * occurrences of the search term in bold.
    * @private
    */
   setSearchedTextToBold_: function() {
     var i = 0;
     var titleElem = this.$.title;
@@ skipping 34 matching lines @@
    */
   cardTitle_: function(numberOfItems, historyDate, search) {
     if (!search)
       return this.item.dateRelativeDay;
 
     var resultId = numberOfItems == 1 ? 'searchResult' : 'searchResults';
     return loadTimeData.getStringF('foundSearchResults', numberOfItems,
         loadTimeData.getString(resultId), search);
   }
 });