MD History: Add responsive layout which hides the sidebar in thin windows

chrome/browser/resources/md_history/side_bar.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/iron-selector/iron-selector.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-item/paper-item.html">
-<link rel="import" href="chrome://resources/polymer/v1_0/paper-listbox/paper-listbox.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-ripple/paper-ripple.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-styles/color.html">
 <link rel="import" href="chrome://history/shared_style.html">
 
 <dom-module id="history-side-bar">
   <template>
     <style include="shared-style">
       :host {
-        padding-top: 5px;
         width: var(--side-bar-width);
       }
 
+      #drawer-header {
+        align-items: center;
+        border-bottom: 1px solid rgba(0, 0, 0, 0.08);
+        display: flex;
+        height: 55px;  /** 1px less to account for the border. */
+        margin-bottom: 5px;
+      }
+
+      h1 {
+        -webkit-padding-start: 24px;
+        color: rgb(33, 33, 33);
+        font-size: 123%;
+        font-weight: 400;
+      }
+
       div.separator {
         background-color: rgba(0, 0, 0, 0.08);
         height: 1px;
         margin: 8px 0;
       }
 
       #clear-browsing-data {
         text-transform: uppercase;
       }
 
       paper-item {
         -webkit-padding-start: 25px;
         cursor: pointer;
         font-size: 14px;
         font-weight: 500;
       }
 
       paper-item.iron-selected {
         color: var(--google-blue-500);
         font-weight: 500;
       }
 
-      paper-listbox {
+      iron-selector {
         -webkit-user-select: none;
-        background-color: transparent;
         color: #5a5a5a;
       }
     </style>
-    <paper-listbox id="overflow-menu" selected="0" on-iron-select="onSelect_"
-        selectable=".page-item">
-      <paper-item view-id="history-list" class="page-item">
-        <div>$i18n{historyMenuItem}</div>
-        <paper-ripple></paper-ripple>
-      </paper-item>
-      <paper-item view-id="history-synced-device-manager" class="page-item">
-        <div>$i18n{openTabsMenuItem}</div>
-        <paper-ripple></paper-ripple>
-      </paper-item>
-      <div class="separator"></div>
-      <paper-item on-tap="onClearBrowsingDataTap_" id="clear-browsing-data">
-        <div>$i18n{clearBrowsingData}</div>
-        <paper-ripple></paper-ripple>
-      </paper-item>
-    </paper-listbox>
+
+    <app-drawer id="drawer" tabindex="0" on-focus="onDrawerFocus_">
+      <div id="drawer-header">
+        <h1>$i18n{title}</h1>
+      </div>
+      <iron-selector id="menu" selected="{{selectedPage}}"
+          selectable=".page-item" attr-for-selected="view-id"
+          on-iron-activate="onSelectorActivate_">
+        <paper-item view-id="history-list" class="page-item">
+          <div>$i18n{historyMenuItem}</div>
+          <paper-ripple></paper-ripple>
+        </paper-item>
+        <paper-item view-id="history-synced-device-manager" class="page-item">
+          <div>$i18n{openTabsMenuItem}</div>
+          <paper-ripple></paper-ripple>
+        </paper-item>
+        <div class="separator"></div>
+        <paper-item on-tap="onClearBrowsingDataTap_" id="clear-browsing-data">
+          <div>$i18n{clearBrowsingData}</div>
+          <paper-ripple></paper-ripple>
+        </paper-item>
+      </iron-selector>
+    </app-drawer>
   </template>
   <script src="chrome://history/side_bar.js"></script>
 </dom-module>