MD History: Improve dom-if usage in history-item

chrome/browser/resources/md_history/grouped_list.html

 <link rel="import" href="chrome://resources/html/polymer.html">

[calamity, 2016/08/08 06:34:05]

CL comment: s/artifial/artificial/

[tsergeant, 2016/08/08 07:36:44]

Done.

 <link rel="import" href="chrome://resources/polymer/v1_0/iron-collapse/iron-collapse.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/iron-icon/iron-icon.html">
 <link rel="import" href="chrome://history/constants.html">
 <link rel="import" href="chrome://history/history_item.html">
 <link rel="import" href="chrome://history/shared_style.html">
 
 <dom-module id="history-grouped-list">
   <template>
     <style include="shared-style">
       :host {
@@ skipping 77 matching lines @@
                   <span class="domain-count">[[domain.visits.length]]</span>
                 </div>
                 <iron-icon icon="[[getDropdownIcon_(domain.expanded)]]"
                     class="dropdown-indicator"></iron-icon>
               </div>
               <iron-collapse opened="{{domain.expanded}}" id="collapse">
                 <template is="dom-if" if="[[domain.rendered]]">
                   <template is="dom-repeat" items="[[domain.visits]]"
                       as="item" initial-count="5" index-as="itemIndex">
                     <history-item item="[[item]]"
-                        starred="[[item.starred]]"
                         selected="{{item.selected}}"
                         has-time-gap="[[needsTimeGap_(
                             groupIndex, domainIndex, itemIndex)]]"
                         search-term="[[searchedTerm]]"
                         number-of-items="[[historyData.length]]"
                         embedded>
                     </history-item>
                   </template>
                 </template>
               </iron-collapse>
             </div>
           </template>
         </div>
       </template>
     </div>
     </template>
   <script src="chrome://history/grouped_list.js"></script>
 </dom-module>