MD Settings: Disallow clicking on "Reset" when resetting profile is in progress.

chrome/browser/resources/settings/reset_page/reset_profile_dialog.html

 <link rel="import" href="chrome://resources/cr_elements/cr_dialog/cr_dialog.html">
 <link rel="import" href="chrome://resources/html/action_link.html">
 <link rel="import" href="chrome://resources/html/polymer.html">
 <link rel="import" href="chrome://resources/html/web_ui_listener_behavior.html">
 <link rel="import" href="chrome://resources/polymer/v1_0/iron-flex-layout/classes/iron-flex-layout.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-spinner/paper-spinner.html">
 <link rel="import" href="/reset_page/reset_browser_proxy.html">
 <link rel="import" href="/settings_shared_css.html">
@@ skipping 11 matching lines @@
       <div class="title">$i18n{resetPageTitle}</div>
       <div class="body">
         <span>
           $i18n{resetPageExplanation}
           <a href="$i18nRaw{resetPageLearnMoreUrl}" target="_blank">
             $i18n{learnMore}
           </a>
         </span>
       </div>
       <div class="button-container">
-        <paper-spinner id="resetSpinner"></paper-spinner>
+        <paper-spinner id="resetSpinner" active="[[clearingInProgress_]]">
+        </paper-spinner>
         <paper-button class="cancel-button" on-tap="onCancelTap_"
             id="cancel">$i18n{cancel}</paper-button>
         <paper-button class="action-button" on-tap="onResetTap_"
-            id="reset">$i18n{resetPageCommit}</paper-button>
+            id="reset" disabled="[[clearingInProgress_]]">
+          $i18n{resetPageCommit}
+        </paper-button>
       </div>
       <div class="footer">
         <paper-checkbox id="sendSettings"
             checked>$i18n{resetPageFeedback}</paper-checkbox>
         <a is="action-link"
             on-tap="onShowReportedSettingsTap_">$i18n{viewReportedSettings}</a>
       </div>
     </cr-dialog>
   </template>
   <link rel="import" type="css" href="chrome://resources/css/action_link.css">
   <script src="reset_profile_dialog.js"></script>
 </dom-module>