Refactors parse_html_subset() into i18n_behavior.

chrome/browser/resources/md_user_manager/create_profile.js

 // Copyright 2016 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.
 
 /**
  * @fileoverview 'create-profile' is a page that contains controls for creating
  * a (optionally supervised) profile, including choosing a name, and an avatar.
  */
 (function() {
 /**
@@ skipping 264 matching lines @@
       // creating SUs with the same name (https://crbug.com/557445).
       var allOnCurrentDevice = supervisedUsers[i].onCurrentDevice;
       for (var j = i + 1; j < supervisedUsers.length; ++j) {
         if (supervisedUsers[j].name == this.profileName_) {
           nameIsUnique = false;
           allOnCurrentDevice = allOnCurrentDevice &&
              supervisedUsers[j].onCurrentDevice;
         }
       }
 
+      var extraAllowedAttributes = {
+        'id': function(node, value) {
+          return node.tagName == 'A' && value != '';
+        },
+        'is': function(node, value) {
+          return node.tagName == 'A' && value == 'action-link';
+        },
+        'role': function(node, value) {
+          return node.tagName == 'A' && value == 'link';
+        },
+        'tabindex': function(node, value) {
+          return node.tagName == 'A';
+        },
+      };
+
       this.handleMessage_(allOnCurrentDevice ?
           this.i18n('managedProfilesExistingLocalSupervisedUser') :
-          this.i18n('manageProfilesExistingSupervisedUser',
-               HTMLEscape(elide(this.profileName_, /* maxLength */ 50))));
+          this.i18nExtraTagsAttrs('manageProfilesExistingSupervisedUser',
+              [HTMLEscape(elide(this.profileName_, /* maxLength */ 50))],
+              [], extraAllowedAttributes));
       return;
     }
     // No existing supervised user's name matches the entered profile name.
     // Continue with creating the new supervised profile.
     this.createProfile_();
   },
 
   /**
    * Creates the new profile.
    * @private
@@ skipping 124 matching lines @@
    * Computed binding that returns True if there are any signed-in users.
    * @param {!Array<!SignedInUser>} signedInUsers signed-in users.
    * @return {boolean}
    * @private
    */
   isSignedIn_: function(signedInUsers) {
     return signedInUsers.length > 0;
   }
 });
 }());