MD History/Downloads: Update toolbar and background color

chrome/browser/resources/md_history/app.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-pages/iron-pages.html">
 <link rel="import" href="chrome://history/grouped_list.html">
 <link rel="import" href="chrome://history/history_list.html">
 <link rel="import" href="chrome://history/history_toolbar.html">
 <link rel="import" href="chrome://history/synced_device_manager.html">
 <link rel="import" href="chrome://history/side_bar.html">
 <link rel="import" href="chrome://history/shared_style.html">
+<link rel="stylesheet" href="chrome://resources/css/md_colors.css">
 
 <dom-module id="history-app">
   <!-- TODO(calamity): work around this deprecated import style -->
-  <link rel="import" type="css" href="chrome://resources/css/md_colors.css">
   <template>
+    <style no-process>
+      history-toolbar {
+        background: var(--md-toolbar-color);
+      }
+    </style>
     <style include="shared-style">
       :host {
         display: flex;
         flex-direction: column;
         min-width: 800px;
       }
 
       #main-container {
         display: flex;
         flex: 1 0 0;
         overflow: hidden;
       }
 
       history-list,
       history-synced-device-manager,
       history-grouped-list {
         flex: 1 0 0;
       }
 
       #content {
         display: flex;
         flex: 1 0 0;
         overflow: hidden;
       }
-
-      history-toolbar {
-        background: var(--md-toolbar-color);
-      }
     </style>
     <history-toolbar id="toolbar" searching="[[queryState_.querying]]"
         is-grouped-mode="{{grouped_}}"
         grouped-range="{{queryState_.range}}"
         search-term="{{queryState_.searchTerm}}"
         query-start-time="[[queryState_.info.queryStartTime]]"
         query-end-time="[[queryState_.info.queryEndTime]]">
     </history-toolbar>
 
     <div id="main-container">
@@ skipping 14 matching lines @@
         <template is="dom-if" if="[[syncedTabsSelected_(selectedPage_)]]">
           <history-synced-device-manager id="history-synced-device-manager"
               session-list="[[queryState_.sessionList]]">
           </history-synced-device-manager>
         </template>
       </iron-pages>
     </div>
   </template>
   <script src="chrome://history/app.js"></script>
 </dom-module>