MD Settings: clean up text controls (links, buttons)

chrome/browser/resources/md_downloads/item.html

 <link rel="import" href="chrome://resources/html/action_link.html">
+<!-- "action_link_css.html" replaces "action_link.css" for MD pages. -->
+<link rel="import" href="chrome://resources/html/action_link_css.html">
 <link rel="import" href="chrome://resources/html/cr.html">
 <link rel="import" href="chrome://resources/html/polymer.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/iron-icon/iron-icon.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-light.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-progress/paper-progress.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-styles/shadow.html">
 <link rel="import" href="chrome://downloads/action_service.html">
 <link rel="import" href="chrome://downloads/constants.html">
 <link rel="import" href="chrome://downloads/i18n_setup.html">
 <link rel="import" href="chrome://downloads/icons.html">
 
 <dom-module id="downloads-item">
   <template>
-    <style>
+    <style include="action-link">
       :host {
         display: flex;
         flex-direction: column;
       }
 
       [hidden] {
         display: none !important;
       }
 
       paper-button {
@@ skipping 281 matching lines @@
             title="$i18n{controlRemoveFromList}"
             style$="[[computeRemoveStyle_(isDangerous_, showCancel_)]]"
             on-tap="onRemoveTap_">&#x2715;</button>
       </div>
 
       <div id="incognito" title="$i18n{inIncognito}" hidden="[[!data.otr]]">
       </div>
     </div>
 
   </template>
-  <link rel="import" type="css" href="chrome://resources/css/action_link.css">
   <script src="chrome://downloads/item.js"></script>
 </dom-module>