MD Settings: change outlinks to actually use <a>

chrome/browser/resources/settings/a11y_page/a11y_page.html

 <link rel="import" href="chrome://resources/html/polymer.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/paper-icon-button/paper-icon-button-light.html">
 <link rel="import" href="../i18n_setup.html">
 <link rel="import" href="../settings_shared_css.html">
 
 <if expr="chromeos">
 <link rel="import" href="chrome://resources/polymer/v1_0/neon-animation/neon-animatable.html">
 <link rel="import" href="manage_a11y_page.html">
 <link rel="import" href="../controls/settings_toggle_button.html">
 <link rel="import" href="../settings_page/settings_animated_pages.html">
@@ skipping 32 matching lines @@
             associated-control="[[$$('#subpage-trigger')]]"
             page-title="$i18n{manageAccessibilityFeatures}">
           <settings-manage-a11y-page prefs="{{prefs}}">
           </settings-manage-a11y-page>
         </settings-subpage>
       </template>
     </settings-animated-pages>
 </if>
 
 <if expr="not chromeos">
-    <div class="settings-box first two-line" on-tap="onMoreFeaturesTap_"
-        actionable>
+    <a class="settings-box first two-line inherit-color no-outline"
+        tabindex="-1" target="_blank"
+        href="https://chrome.google.com/webstore/category/collection/accessibility">
       <div class="start">
         $i18n{moreFeaturesLink}
         <div class="secondary" id="moreFeaturesSecondary">
           $i18n{a11yWebStore}
         </div>
       </div>
-      <button class="icon-external" is="paper-icon-button-light"
+      <button class="icon-external" is="paper-icon-button-light" actionable
           aria-label="$i18n{moreFeaturesLink}"
           aria-describedby="moreFeaturesSecondary"></button>
-    </div>
+    </a>
 </if>
 
   </template>
   <script src="a11y_page.js"></script>
 </dom-module>