[MD History] Create an icons.html for MD History.

chrome/browser/resources/md_history/history_toolbar.html

 <link rel="import" href="chrome://resources/cr_elements/icons.html">
 <link rel="import" href="chrome://resources/html/polymer.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/iron-flex-layout/iron-flex-layout.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-button/paper-button.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-icon-button/paper-icon-button.html">
-<link rel="import" href="chrome://resources/polymer/v1_0/iron-icons/hardware-icons.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-spinner/paper-spinner.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-tabs/paper-tab.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-tabs/paper-tabs.html">
 <link rel="import" href="chrome://resources/cr_elements/cr_search_field/cr_search_field.html">
 <link rel="import" href="chrome://history/shared_style.html">
+<link rel="import" href="chrome://history/icons.html">

[tsergeant, 2016/05/25 04:33:20]

Nit: Alphabetical order puts this above shared_style

[calamity, 2016/05/25 05:59:24]

Done.

 
 <dom-module id="history-toolbar">
   <template>
     <style include="shared-style">
       :host {
         color: #fff;
         transition: background-color 150ms;
         width: 100%;
       }
 
@@ skipping 167 matching lines @@
         <paper-tabs attr-for-selected="value" selected="{{groupedRange}}"
             id="grouped-range-buttons">
           <paper-tab value="0">$i18n{rangeAllTime}</paper-tab>
           <paper-tab value="1">$i18n{rangeWeek}</paper-tab>
           <paper-tab value="2">$i18n{rangeMonth}</paper-tab>
         </paper-tabs>
         <div id="grouped-nav-container">
           <span id="grouped-date">
             {{getHistoryInterval_(queryStartTime, queryEndTime)}}
           </span>
-          <paper-icon-button icon="today" alt="$i18n{rangeToday}"
+          <paper-icon-button icon="history:today" alt="$i18n{rangeToday}"
               title="$i18n{rangeToday}"></paper-icon-button>
-          <paper-icon-button icon="hardware:keyboard-arrow-left"
+          <paper-icon-button icon="history:keyboard-arrow-left"

[tsergeant, 2016/05/25 04:33:19]

Probably should have caught this last review, but:

What's the difference between keyboard-arrow-left and chevron-left? I can't see
any difference and chevron-right is already in the shared icons file, so it
might be worth changing.

[calamity, 2016/05/25 05:59:24]

Done.

               alt="$i18n{rangePrevious}" title="$i18n{rangePrevious}"
               class="rtl-reversible"></paper-icon-button>
-          <paper-icon-button icon="hardware:keyboard-arrow-right"
+          <paper-icon-button icon="history:keyboard-arrow-right"
               alt="$i18n{rangeNext}" title="$i18n{rangeNext}"
               class="rtl-reversible"></paper-icon-button>
         </div>
       </div>
     </template>
   </template>
   <script src="chrome://history/history_toolbar.js"></script>
 </dom-module>