UI: Increased spacing on AIDE prompt screen.

chrome/browser/resources/chromeos/login/oobe_screen_oauth_enrollment_webview.html

 <!-- Copyright 2015 The Chromium Authors. All rights reserved.
      Use of this source code is governed by a BSD-style license that can be
      found in the LICENSE file. -->
 
 <div id="oauth-enrollment" class="step no-logo hidden" hidden>
   <div id="oauth-enroll-step-contents">
     <div id="oauth-enroll-step-signin">
       <div id="oauth-enroll-auth-view-container"></div>
     </div>
     <div id="oauth-enroll-step-error">
@@ skipping 15 matching lines @@
           <p class="enterprise-info"
               i18n-content="oauthEnrollDeviceInformation"></p>
         </div>
         <div class="footer" flex vertical layout justified>
           <div class="oauth-enroll-step-message">
             <span id="oauth-enroll-attribute-prompt-message"
                   i18n-content="oauthEnrollAttributeExplanation"></span>
             <a href="#" id="oauth-enroll-learn-more-link"
                class="oauth-enroll-link"
                i18n-content="oauthEnrollExplaneAttributeLink"></a>
-            <gaia-input-form i18n-values="buttonText:oauthEnrollNextBtn">
+            <gaia-input-form id="oauth-enroll-attribute-input"
+                             i18n-values="buttonText:oauthEnrollNextBtn">
               <gaia-input id="oauth-enroll-asset-id"
                           type="text"
                           i18n-values="label:oauthEnrollAssetIdLabel">
               </gaia-input>
               <gaia-input id="oauth-enroll-location"
                           type="text"
                           i18n-values="label:oauthEnrollLocationLabel">
               </gaia-input>
               <gaia-paper-button noink id="oauth-enroll-skip-button"
                                        class="link-button"
@@ skipping 16 matching lines @@
   <div id="oauth-enrollment-controls" class="step-controls"></div>
   <button id="oauth-enroll-back-button" is="gaia-icon-button" icon="arrow-back"
       hidden i18n-values="aria-label:backButton" tabindex="0"></button>
   <button id="oauth-enroll-cancel-button" is="gaia-icon-button" icon="close"
       class="oauth-enroll-button" i18n-values="aria-label:closeButton"
       tabindex="0"></button>
   <button id="oauth-enroll-refresh-button" is="gaia-icon-button" icon="refresh"
       class="oauth-enroll-button" i18n-values="aria-label:closeButton"
       tabindex="0"></button>
 </div>