MD Settings: Convert all usages of .bind(this) to use ES6 arrow function.

chrome/browser/resources/settings/people_page/users_page.js

Index: chrome/browser/resources/settings/people_page/users_page.js
diff --git a/chrome/browser/resources/settings/people_page/users_page.js b/chrome/browser/resources/settings/people_page/users_page.js
index 4fa1d5a34b8bddf4c66e88a4b2af25f514d812fc..2d14833a0dc32a71ea7f50536b37694900287136 100644
--- a/chrome/browser/resources/settings/people_page/users_page.js
+++ b/chrome/browser/resources/settings/people_page/users_page.js
@@ -34,13 +34,13 @@ Polymer({
 
   /** @override */
   created: function() {
-    chrome.usersPrivate.isCurrentUserOwner(function(isOwner) {
+    chrome.usersPrivate.isCurrentUserOwner(isOwner => {
       this.isOwner_ = isOwner;
-    }.bind(this));
+    });
 
-    chrome.usersPrivate.isWhitelistManaged(function(isWhitelistManaged) {
+    chrome.usersPrivate.isWhitelistManaged(isWhitelistManaged => {
       this.isWhitelistManaged_ = isWhitelistManaged;
-    }.bind(this));
+    });
   },
 
   /**