MD WebUI: Make cr-lazy-render get() synchronous

chrome/test/data/webui/cr_elements/cr_lazy_render_tests.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.
 
 suite('cr-lazy-render', function() {
+  var lazy;
+  var bind;
 
   suiteSetup(function() {
     return PolymerTest.importHtml(
         'chrome://resources/polymer/v1_0/paper-checkbox/paper-checkbox.html');
   });
 
   setup(function() {
     PolymerTest.clearBody();
     var template =
         '<template is="dom-bind" id="bind">' +
         '  <template is="cr-lazy-render" id="lazy">' +
         '    <h1>' +
         '      <paper-checkbox checked="{{checked}}"></paper-checkbox>' +
         '      {{name}}' +
         '    </h1>' +
         '  </template>' +
         '</template>';
     document.body.innerHTML = template;
+    lazy = document.getElementById('lazy');
+    bind = document.getElementById('bind');
   });
 
   test('stamps after get()', function() {
-    var lazy = document.getElementById('lazy');
-
     assertFalse(!!document.body.querySelector('h1'));
     assertFalse(!!lazy.getIfExists());
 
-    return lazy.get().then(function(inner) {
-      assertEquals('H1', inner.nodeName);
-      assertEquals(inner, document.body.querySelector('h1'));
-    });
+    var inner = lazy.get();
+    assertEquals('H1', inner.nodeName);
+    assertEquals(inner, document.body.querySelector('h1'));
   });
 
   test('one-way binding works', function() {
-    var bind = document.getElementById('bind');
     bind.name = 'Wings';
-    var lazy = document.getElementById('lazy');
 
-    return lazy.get().then(function(inner) {
-      assertNotEquals(-1, inner.textContent.indexOf('Wings'));
-      bind.name = 'DC';
-      assertNotEquals(-1, inner.textContent.indexOf('DC'));
-    });
+    var inner = lazy.get();
+    assertNotEquals(-1, inner.textContent.indexOf('Wings'));
+    bind.name = 'DC';
+    assertNotEquals(-1, inner.textContent.indexOf('DC'));
   });
 
   test('two-way binding works', function() {
-    var bind = document.getElementById('bind');
     bind.checked = true;
 
-    var lazy = document.getElementById('lazy');
-
-    return lazy.get().then(function(inner) {
-      var checkbox = document.querySelector('paper-checkbox');
-      assertTrue(checkbox.checked);
-      MockInteractions.tap(checkbox);
-      assertFalse(checkbox.checked);
-      assertFalse(bind.checked);
-    });
+    var inner = lazy.get();
+    var checkbox = document.querySelector('paper-checkbox');
+    assertTrue(checkbox.checked);
+    MockInteractions.tap(checkbox);
+    assertFalse(checkbox.checked);
+    assertFalse(bind.checked);
   });
 });