[MD History] Add search for synced devices.

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.
 
 cr.define('md_history', function() {
   var HistoryItem = Polymer({
     is: 'history-item',
 
     properties: {
       // Underlying HistoryEntry data for this item. Contains read-only fields
@@ skipping 51 matching lines @@
     showIcon_: function() {
       this.$.icon.style.backgroundImage =
           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
      */
+    // TODO(calamity): Pull this bolding behavior into a separate element for
+    // synced device search.
     setSearchedTextToBold_: function() {
       var i = 0;
       var titleElem = this.$.title;
       var titleText = this.item.title;
 
       if (this.searchTerm == '' || this.searchTerm == null) {
         titleElem.textContent = titleText;
         return;
       }
 
@@ skipping 53 matching lines @@
 
     if (searchedTerm)
       return currentItem.dateShort != nextItem.dateShort;
 
     return currentItem.time - nextItem.time > BROWSING_GAP_TIME &&
         currentItem.dateRelativeDay == nextItem.dateRelativeDay;
   };
 
   return { HistoryItem: HistoryItem };
 });