MD Settings: Stop using prefs to populate import data dialog.

chrome/test/data/webui/settings/import_data_dialog_test.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.
 
 /**
  * @constructor
  * @implements {settings.ImportDataBrowserProxy}
  * @extends {settings.TestBrowserProxy}
  */
 var TestImportDataBrowserProxy = function() {
@@ skipping 56 matching lines @@
   ];
 
   function createBooleanPref(name) {
     return {
       key: name,
       type: chrome.settingsPrivate.PrefType.BOOLEAN,
       value: true,
     };
   }
 
-  var prefs = {};
-  [
-    'import_history',
-    'import_bookmarks',
-    'import_saved_passwords',
-    'import_search_engine',
-    'import_autofill_form_data',
-  ].forEach(function(name) {
-    prefs[name] = createBooleanPref(name);
-  });
-
   var dialog = null;
 
   setup(function() {
     browserProxy = new TestImportDataBrowserProxy();
     browserProxy.setBrowserProfiles(browserProfiles);
     settings.ImportDataBrowserProxyImpl.instance_ = browserProxy;
     PolymerTest.clearBody();
     dialog = document.createElement('settings-import-data-dialog');
-    dialog.set('prefs', prefs);
     document.body.appendChild(dialog);
     return browserProxy.whenCalled('initializeImportDialog').then(function() {
       assertTrue(dialog.$.dialog.open);
       Polymer.dom.flush();
     });
   });
 
   function simulateBrowserProfileChange(index) {
     dialog.$.browserSelect.selectedIndex = index;
     dialog.$.browserSelect.dispatchEvent(new CustomEvent('change'));
   }
 
   test('Initialization', function() {
     assertFalse(dialog.$.import.hidden);
     assertFalse(dialog.$.import.disabled);
     assertFalse(dialog.$.cancel.hidden);
     assertFalse(dialog.$.cancel.disabled);
     assertTrue(dialog.$.done.hidden);
     assertTrue(dialog.$.successIcon.parentElement.hidden);
   });
 
   test('ImportButton', function() {
     assertFalse(dialog.$.import.disabled);
 
-    // Flip all prefs to false.
-    Object.keys(prefs).forEach(function(prefName) {
-      dialog.set('prefs.' + prefName + '.value', false);
+    var checkboxes = dialog.shadowRoot.querySelectorAll('paper-checkbox');
+    assertEquals(5, checkboxes.length);
+
+    checkboxes.forEach(function(checkbox) {
+      checkbox.checked = false;
     });
+    checkboxes[0].fire('change');
     assertTrue(dialog.$.import.disabled);
 
     // Change browser selection to "Import from Bookmarks HTML file".
     simulateBrowserProfileChange(1);
     assertTrue(dialog.$.import.disabled);
 
-    // Ensure everything except |import_bookmarks| is ignored.
-    dialog.set('prefs.import_history.value', true);
+    // Ensure everything except |favorites| is ignored.
+    var history = dialog.$$('#history');
+    history.checked = true;
+    history.fire('change');
     assertTrue(dialog.$.import.disabled);
 
-    dialog.set('prefs.import_bookmarks.value', true);
+    var favorites = dialog.$$('#favorites');
+    favorites.checked = true;
+    favorites.fire('change');
     assertFalse(dialog.$.import.disabled);
   });
 
   function assertInProgressButtons() {
     assertFalse(dialog.$.import.hidden);
     assertTrue(dialog.$.import.disabled);
     assertFalse(dialog.$.cancel.hidden);
     assertTrue(dialog.$.cancel.disabled);
     assertTrue(dialog.$.done.hidden);
     assertTrue(dialog.$$('paper-spinner').active);
@@ skipping 22 matching lines @@
 
       simulateImportStatusChange(settings.ImportDataStatus.SUCCEEDED);
       assertSucceededButtons();
 
       assertFalse(dialog.$.successIcon.parentElement.hidden);
       assertFalse(dialog.$$('settings-toggle-button').parentElement.hidden);
     });
   });
 
   test('ImportFromBrowserProfile', function() {
-    dialog.set('prefs.import_bookmarks.value', false);
+    dialog.$.favorites.checked = false;
 
     var expectedIndex = 0;
     simulateBrowserProfileChange(expectedIndex);
     MockInteractions.tap(dialog.$.import);
     return browserProxy.whenCalled('importData').then(function(actualIndex) {
       assertEquals(expectedIndex, actualIndex);
 
       simulateImportStatusChange(settings.ImportDataStatus.IN_PROGRESS);
       assertInProgressButtons();
 
       simulateImportStatusChange(settings.ImportDataStatus.SUCCEEDED);
       assertSucceededButtons();
 
       assertFalse(dialog.$.successIcon.parentElement.hidden);
       assertTrue(dialog.$$('settings-toggle-button').parentElement.hidden);
     });
   });
 
   test('ImportError', function() {
     simulateImportStatusChange(settings.ImportDataStatus.FAILED);
     assertFalse(dialog.$.dialog.open);
   });
 });