[MD History] Extract shared stylesheet.

chrome/browser/resources/md_history/history_item.html

 <link rel="import" href="chrome://resources/polymer/v1_0/polymer/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/iron-icon/iron-icon.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/iron-icons/iron-icons.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-checkbox/paper-checkbox.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/paper-styles/shadow.html">
 <link rel="import" href="chrome://resources/html/util.html">
 
+<link rel="import" href="chrome://history/shared_style.html">

[tsergeant, 2016/02/23 04:52:26]

Nit: Move the blank line from before this line to after this line so the spacing
doesn't change.

[calamity, 2016/02/23 05:33:43]

Done.

 <dom-module id="history-item">
   <template>
+    <style include="shared-style"></style>
     <style>
       :host {
         @apply(--layout-center);
         @apply(--layout-vertical);
         padding: 0 24px;
       }
 
       #main-container {
         background: #fff;
-        border-color: rgba(0, 0, 0, 0.14);
+        border-color: var(--card-border-color);
         border-style: solid;
         border-width: 0 1px;
-        max-width: 960px;
-        min-width: 500px;
+        max-width: var(--card-max-width);
+        min-width: var(--card-min-width);
         width: 100%;
       }
 
       :host([is-card-start]) #main-container {
         border-top-width: 1px;
         margin-top: 20px;
       }
 
       :host([is-card-end]) #main-container {
         border-bottom-width: 2px;
       }
 
       #date-accessed {
         display: none;
       }
 
       :host([is-card-start]) #date-accessed {
-        @apply(--layout-center);
-        @apply(--layout-horizontal);
-        -webkit-padding-start: 20px;
-        background: #fafafa;
-        border-bottom: 1px solid rgba(0, 0, 0, 0.14);
-        border-radius: 2px 2px 0 0;
-        color: #333;
-        font-size: 14px;
-        font-weight: 500;
-        height: 48px;
+        display: flex;
       }
 
       #item-container {
         @apply(--layout-center);
         @apply(--layout-horizontal);
         min-height: 40px;
       }
 
       :host([is-card-start]) #item-container {
         padding-top: 8px;
       }
 
       :host([is-card-end]) #item-container {
         padding-bottom: 8px;
       }
 
-      #titleAndDomain {
+      #title-and-domain {
         @apply(--layout-center);
         @apply(--layout-flex);
         @apply(--layout-horizontal);
         min-height: 40px;
         overflow: hidden;
       }
 
       paper-checkbox {
         --paper-checkbox-checked-color: rgb(68, 136, 255);
         --paper-checkbox-size: 16px;
         --paper-checkbox-unchecked-color: #969696;
         height: 16px;
         margin: 0 16px 0 20px;
         padding: 2px;
         width: 16px;
       }
 
-      #time {
+      #time-accessed {
         color: #646464;
         min-width: 96px;
       }
 
-      #title {
-        color: #333;
-        overflow: hidden;
-        text-decoration: none;
-        text-overflow: ellipsis;
-        white-space: nowrap;
-      }
-
-      #title:hover {
-        text-decoration: underline;
-      }
-
       #domain {
         -webkit-margin-start: 16px;
         color: #969696;
         flex-shrink: 0;
       }
 
-      iron-icon {
-        --iron-icon-height: 16px;
-        --iron-icon-width: 16px;
-      }
-
-      #website-icon {
-        -webkit-margin-end: 16px;
-        height: 16px;
-        min-width: 16px;
-      }
-
       #menu-button {
         -webkit-margin-end: 12px;
         -webkit-margin-start: 2px;
         color: #969696;
         height: 36px;
         min-width: 36px;
         width: 36px;
       }
 
-      #bookmark {
+      #bookmark-star {
+        --iron-icon-height: 16px;
+        --iron-icon-width: 16px;
         -webkit-margin-end: 10px;
         -webkit-margin-start: 20px;
         color: rgb(68, 136, 255);
         min-width: 16px;
         visibility: hidden;
       }
 
       #time-gap-separator {
         -webkit-border-start: 1px solid #888;
         -webkit-margin-start: 77px;
         height: 15px;
       }
     </style>
     <div id="main-container">
-      <div id="date-accessed">[[historyDate]]</div>
+      <div id="date-accessed" class="card-title">[[historyDate]]</div>
       <div id="item-container">
         <paper-checkbox id="checkbox" on-tap="onCheckboxSelected_"
             checked="{{selected}}" disabled="[[selectionNotAllowed_()]]">
         </paper-checkbox>
-        <span id="time">{{timeAccessed}}</span>
-        <div id="website-icon"></div>
-        <div id="titleAndDomain">
-          <a href$="{{websiteUrl}}" id="title">{{websiteTitle}}</a>
+        <span id="time-accessed">{{timeAccessed}}</span>
+        <div class="website-icon" id="icon"></div>
+        <div id="title-and-domain">
+          <a href$="{{websiteUrl}}" id="title" class="website-title">
+            {{websiteTitle}}
+          </a>
           <span id="domain">{{websiteDomain}}</span>
         </div>
-        <iron-icon icon="star" id="bookmark"></iron-icon>
+        <iron-icon icon="star" id="bookmark-star"></iron-icon>
         <paper-icon-button icon="more-vert" id="menu-button"
             on-tap="onMenuButtonTap_">
         </paper-icon-button>
       </div>
       <template is="dom-if" if="{{hasTimeGap}}">
         <div id="time-gap-separator"></div>
       </template>
     </div>
   </template>
   <script src="chrome://history/history_item.js"></script>
 </dom-module>