[WebUI] use one-way Polymer binding on dom-if, dom-repeat, and iron-list

chrome/browser/resources/md_history/history_list.html

 <link rel="import" href="chrome://resources/html/polymer.html">
 
 <link rel="import" href="chrome://resources/cr_elements/cr_lazy_render/cr_lazy_render.html">
 <link rel="import" href="chrome://resources/cr_elements/shared_style_css.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/iron-a11y-announcer/iron-a11y-announcer.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/iron-list/iron-list.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/iron-scroll-threshold/iron-scroll-threshold.html">
 <link rel="import" href="chrome://history/browser_service.html">
 <link rel="import" href="chrome://history/constants.html">
 <link rel="import" href="chrome://history/history_item.html">
@@ skipping 17 matching lines @@
 
       dialog .body {
         white-space: pre-wrap;
       }
     </style>
     <div id="no-results" class="centered-message"
         hidden$="[[hasResults_(historyData_.length)]]">
       [[noResultsMessage_(searchedTerm)]]
     </div>
 
-    <iron-list items="{{historyData_}}" as="item" id="infinite-list"
+    <iron-list items="[[historyData_]]" as="item" id="infinite-list"
         hidden$="[[!hasResults_(historyData_.length)]]">
       <template>
         <history-item tabindex$="[[tabIndex]]"
             item="[[item]]"
             selected="[[item.selected]]"
             is-card-start="[[isCardStart_(item, index, historyData_.length)]]"
             is-card-end="[[isCardEnd_(item, index, historyData_.length)]]"
             has-time-gap="[[needsTimeGap_(item, index, historyData_.length)]]"
             search-term="[[searchedTerm]]"
             number-of-items="[[historyData_.length]]"
@@ skipping 32 matching lines @@
         <button id="menuRemoveButton" class="dropdown-item"
             hidden="[[!canDeleteHistory_]]"
             on-tap="onRemoveFromHistoryTap_">
           $i18n{removeFromHistory}
         </button>
       </dialog>
     </template>
   </template>
   <script src="chrome://history/history_list.js"></script>
 </dom-module>