Enable Roboto by default for testing purpose.

chrome/test/data/chromeos/oobe_webui_browsertest.js

 // Copyright (c) 2012 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.
 
+GEN('#include "chrome/browser/ui/browser.h"');
+GEN('#include "chrome/browser/ui/browser_commands.h"');
+GEN('#include "chrome/browser/ui/exclusive_access/' +
+    'fullscreen_controller_test.h"');
+
 /**
  * Fixture for ChromeOs WebUI OOBE testing.
  *
  * There's one test for each page in the Chrome OS Out-of-box-experience
  * (OOBE), so that an accessibility audit can be run automatically on
  * each one. This will alert a developer immediately if they accidentally
  * forget to label a control, or if a focusable control ends up
  * off-screen without being disabled, for example.
  * @constructor
  */
 function OobeWebUITest() {}
 
 OobeWebUITest.prototype = {
   __proto__: testing.Test.prototype,
 
   /** @override */
   browsePreload: 'chrome://oobe/oobe',
 
   /** @override */
   runAccessibilityChecks: true,
 
   /** @override */
   accessibilityIssuesAreErrors: true,
 
   /** @override */
+  testGenPreamble: function() {
+    // OobeWebUI should run in fullscreen.
+    GEN('  FullscreenNotificationObserver fullscreen_observer;');
+    GEN('  chrome::ToggleFullscreenMode(browser());');
+    GEN('  fullscreen_observer.Wait();');
+  },
+
+  /** @override */
   setUp: function() {
     testing.Test.prototype.setUp.call(this);
 
     // Polymer issue https://github.com/Polymer/polymer/issues/1081
     this.accessibilityAuditConfig.ignoreSelectors('badAriaAttributeValue',
                                                   'PAPER-BUTTON');
     this.accessibilityAuditConfig.ignoreSelectors('badAriaAttributeValue',
                                                   '#progressContainer');
   },
 };
@@ skipping 59 matching lines @@
 // other way to initialize the appropriate C++ handlers.
 TEST_F('OobeWebUITest', 'DISABLED_OobeUserImage', function() {
   Oobe.getInstance().showScreen({'id':'user-image'});
 });
 
 // TODO: figure out what state to mock in order for this
 // screen to show up.
 TEST_F('OobeWebUITest', 'DISABLED_OobeAccountPicker', function() {
   Oobe.getInstance().showScreen({'id':'account-picker'});
 });