ES6ify /gr-account-dropdown/*

Bug: Issue 6179
Change-Id: Ibe19aabeb6cdfe750a01ca2b31beca84f41f265d
diff --git a/polygerrit-ui/app/elements/core/gr-account-dropdown/gr-account-dropdown.js b/polygerrit-ui/app/elements/core/gr-account-dropdown/gr-account-dropdown.js
index 65c99c0..cbd0e19 100644
--- a/polygerrit-ui/app/elements/core/gr-account-dropdown/gr-account-dropdown.js
+++ b/polygerrit-ui/app/elements/core/gr-account-dropdown/gr-account-dropdown.js
@@ -14,7 +14,7 @@
 (function() {
   'use strict';
 
-  var INTERPOLATE_URL_PATTERN = /\$\{([\w]+)\}/g;
+  const INTERPOLATE_URL_PATTERN = /\$\{([\w]+)\}/g;
 
   Polymer({
     is: 'gr-account-dropdown',
@@ -37,35 +37,35 @@
       _switchAccountUrl: String,
     },
 
-    attached: function() {
+    attached() {
       this._handleLocationChange();
       this.listen(window, 'location-change', '_handleLocationChange');
-      this.$.restAPI.getConfig().then(function(cfg) {
+      this.$.restAPI.getConfig().then(cfg => {
         if (cfg && cfg.auth && cfg.auth.switch_account_url) {
           this._switchAccountUrl = cfg.auth.switch_account_url;
         } else {
           this._switchAccountUrl = null;
         }
         this._hasAvatars = !!(cfg && cfg.plugin && cfg.plugin.has_avatars);
-      }.bind(this));
+      });
     },
 
-    detached: function() {
+    detached() {
       this.unlisten(window, 'location-change', '_handleLocationChange');
     },
 
-    _getLinks: function(switchAccountUrl, path) {
-      var links = [{name: 'Settings', url: '/settings'}];
+    _getLinks(switchAccountUrl, path) {
+      const links = [{name: 'Settings', url: '/settings'}];
       if (switchAccountUrl) {
-        var replacements = {path: path};
-        var url = this._interpolateUrl(switchAccountUrl, replacements);
-        links.push({name: 'Switch account', url: url});
+        const replacements = {path};
+        const url = this._interpolateUrl(switchAccountUrl, replacements);
+        links.push({name: 'Switch account', url});
       }
       links.push({name: 'Sign out', url: '/logout'});
       return links;
     },
 
-    _getTopContent: function(account) {
+    _getTopContent(account) {
       // if (!account) { return []; }
       return [
         {text: account.name, bold: true},
@@ -73,15 +73,15 @@
       ];
     },
 
-    _handleLocationChange: function() {
+    _handleLocationChange() {
       this._path =
           window.location.pathname +
           window.location.search +
           window.location.hash;
     },
 
-    _interpolateUrl: function(url, replacements) {
-      return url.replace(INTERPOLATE_URL_PATTERN, function(match, p1) {
+    _interpolateUrl(url, replacements) {
+      return url.replace(INTERPOLATE_URL_PATTERN, (match, p1) => {
         return replacements[p1] || '';
       });
     },
diff --git a/polygerrit-ui/app/elements/core/gr-account-dropdown/gr-account-dropdown_test.html b/polygerrit-ui/app/elements/core/gr-account-dropdown/gr-account-dropdown_test.html
index 3e109a8..0d1a295 100644
--- a/polygerrit-ui/app/elements/core/gr-account-dropdown/gr-account-dropdown_test.html
+++ b/polygerrit-ui/app/elements/core/gr-account-dropdown/gr-account-dropdown_test.html
@@ -33,28 +33,28 @@
 </test-fixture>
 
 <script>
-  suite('gr-account-dropdown tests', function() {
-    var element;
+  suite('gr-account-dropdown tests', () => {
+    let element;
 
-    setup(function() {
+    setup(() => {
       stub('gr-rest-api-interface', {
-        getConfig: function() { return Promise.resolve({}); },
+        getConfig() { return Promise.resolve({}); },
       });
       element = fixture('basic');
     });
 
-    test('account information', function() {
+    test('account information', () => {
       element.account = {name: 'John Doe', email: 'john@doe.com'};
       assert.deepEqual(element.topContent,
           [{text: 'John Doe', bold: true}, {text: 'john@doe.com'}]);
     });
 
-    test('switch account', function() {
+    test('switch account', () => {
       // No switch account link.
       assert.equal(element._getLinks(null).length, 2);
 
       // Unparameterized switch account link.
-      var links = element._getLinks('/switch-account');
+      let links = element._getLinks('/switch-account');
       assert.equal(links.length, 3);
       assert.deepEqual(links[1],
           {name: 'Switch account', url: '/switch-account'});
@@ -66,12 +66,12 @@
           {name: 'Switch account', url: '/switch-account/c/123'});
     });
 
-    test('_interpolateUrl', function() {
-      var replacements = {
-        'foo': 'bar',
-        'test': 'TEST',
+    test('_interpolateUrl', () => {
+      const replacements = {
+        foo: 'bar',
+        test: 'TEST',
       };
-      var interpolate = function(url) {
+      const interpolate = function(url) {
         return element._interpolateUrl(url, replacements);
       };