MD User Manager: Refactors existing dialogs in User Manager into <user-manager-dialog>

chrome/browser/resources/md_user_manager/create_profile.html

Index: chrome/browser/resources/md_user_manager/create_profile.html
diff --git a/chrome/browser/resources/md_user_manager/create_profile.html b/chrome/browser/resources/md_user_manager/create_profile.html
index 19d307bae3ca9fd8698254f29b40cb6a465c7d19..598ebe9c72b79c0826e79de63add7defa4db436f 100644
--- a/chrome/browser/resources/md_user_manager/create_profile.html
+++ b/chrome/browser/resources/md_user_manager/create_profile.html
@@ -63,7 +63,7 @@
       }
 
       #title-bar {
-        border-bottom: 1px solid rgba(0, 0, 0, .12);
+        border-bottom: var(--user-manager-separator-line);
         font-size: 16px;
         font-weight: 500;
         padding: 104px 0 16px;
@@ -97,7 +97,7 @@
         --paper-button-flat-keyboard-focus: {
           background: var(--paper-grey-400);
         };
-        border: 1px solid rgba(0, 0, 0, .12);
+        border: var(--user-manager-separator-line);
         margin: 12px;
         min-width: 0;
         padding: 6px 4px;
@@ -198,7 +198,7 @@
       <div id="supervised-user-container">
         <div id="learn-more" >
           <a is="action-link" on-tap="onLearnMoreTap_">$i18n{learnMore}</a>
-        <div>
+        </div>
         <template is="dom-if" if="[[isSupervised_]]">
           <template is="dom-if" if="[[isSignedIn_(signedInUsers_)]]">
             <paper-dropdown-menu no-label-float>