Cache the Windows Parental Controls Platform Answer

chrome/browser/ui/ash/launcher/launcher_context_menu_unittest.cc

 // Copyright (c) 2013 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.
 
 #include "chrome/browser/ui/ash/launcher/launcher_context_menu.h"
 
 #include "ash/shelf/shelf.h"
 #include "ash/shelf/shelf_item_types.h"
 #include "ash/shelf/shelf_model.h"
 #include "ash/shell.h"
@@ skipping 18 matching lines @@
 class LauncherContextMenuTest : public ash::test::AshTestBase {
  protected:
   static bool IsItemPresentInMenu(LauncherContextMenu* menu, int command_id) {
     DCHECK(menu);
     return menu->GetIndexOfCommandId(command_id) != -1;
   }
 
   LauncherContextMenuTest()
       : profile_(new TestingProfile()) {}
 
+  static void SetUpTestCase() {
+    // Checking for incognito availability requires platform parental controls
+    // initialization.
+    IncognitoModePrefs::InitializePlatformParentalControls();
+  }
+
+  static void TearDownTestCase() {
+    IncognitoModePrefs::UninitializePlatformParentalControls();
+  }
+
   void SetUp() override {
     ash::test::AshTestBase::SetUp();
     controller_.reset(
         new TestChromeLauncherController(profile(), &shelf_model_));
   }
 
   void TearDown() override {
     controller_.reset(NULL);
     ash::test::AshTestBase::TearDown();
   }
@@ skipping 51 matching lines @@
   EXPECT_TRUE(menu->IsCommandIdEnabled(LauncherContextMenu::MENU_NEW_WINDOW));
 
   // Disable Incognito mode.
   IncognitoModePrefs::SetAvailability(profile()->GetPrefs(),
                                       IncognitoModePrefs::FORCED);
   menu.reset(CreateLauncherContextMenu(ash::TYPE_BROWSER_SHORTCUT));
   ASSERT_TRUE(IsItemPresentInMenu(
       menu.get(), LauncherContextMenu::MENU_NEW_WINDOW));
   EXPECT_FALSE(menu->IsCommandIdEnabled(LauncherContextMenu::MENU_NEW_WINDOW));
 }