NULL -> nullptr under athena/

athena/home/home_card_unittest.cc

 // Copyright 2014 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 "athena/home/public/home_card.h"
 
 #include "athena/activity/public/activity_factory.h"
 #include "athena/home/home_card_constants.h"
 #include "athena/home/home_card_impl.h"
 #include "athena/test/base/athena_test_base.h"
@@ skipping 91 matching lines @@
 }
 
 // Verify if the home card is correctly minimized after app launch.
 TEST_F(HomeCardTest, AppSelection) {
   EXPECT_EQ(HomeCard::VISIBLE_MINIMIZED, HomeCard::Get()->GetState());
 
   WindowManager::Get()->EnterOverview();
   EXPECT_EQ(HomeCard::VISIBLE_BOTTOM, HomeCard::Get()->GetState());
 
   athena::ActivityFactory::Get()->CreateWebActivity(
-      NULL, base::string16(), GURL("http://www.google.com/"));
+      nullptr, base::string16(), GURL("http://www.google.com/"));
   EXPECT_EQ(HomeCard::VISIBLE_MINIMIZED, HomeCard::Get()->GetState());
 }
 
 TEST_F(HomeCardTest, Accelerators) {
   EXPECT_EQ(HomeCard::VISIBLE_MINIMIZED, HomeCard::Get()->GetState());
 
   ui::test::EventGenerator generator(root_window());
 
   // CTRL+L toggles centered home card, check that overview mode follows
   generator.PressKey(ui::VKEY_L, ui::EF_CONTROL_DOWN);
@@ skipping 179 matching lines @@
 
 TEST_F(HomeCardTest, DontMinimizeWithModalWindow) {
   aura::Window* home_card = GetHomeCardWindow();
 
   WindowManager::Get()->EnterOverview();
   EXPECT_EQ(HomeCard::VISIBLE_BOTTOM, HomeCard::Get()->GetState());
   EXPECT_TRUE(wm::IsActiveWindow(home_card));
 
   aura::test::TestWindowDelegate delegate;
   scoped_ptr<aura::Window> modal(test::CreateTransientWindow(
-      &delegate, NULL, ui::MODAL_TYPE_SYSTEM, false));
+      &delegate, nullptr, ui::MODAL_TYPE_SYSTEM, false));
   modal->Show();
   wm::ActivateWindow(modal.get());
   EXPECT_TRUE(wm::IsActiveWindow(modal.get()));
   EXPECT_FALSE(wm::IsActiveWindow(home_card));
   EXPECT_EQ(HomeCard::VISIBLE_BOTTOM, HomeCard::Get()->GetState());
 
   modal.reset();
 
   EXPECT_EQ(HomeCard::VISIBLE_BOTTOM, HomeCard::Get()->GetState());
 
   // TODO(oshima): The focus should be set to home card. Flip the
   // condition once crbug.com/424750 is fixed.a
   EXPECT_FALSE(wm::IsActiveWindow(home_card));
 }
 
 }  // namespace athena