Fix crash during shutdown

athena/wm/window_manager_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/wm/public/window_manager.h"
 
 #include "athena/screen/public/screen_manager.h"
 #include "athena/test/athena_test_base.h"
 #include "athena/wm/public/window_list_provider.h"
 #include "athena/wm/split_view_controller.h"
@@ skipping 17 matching lines @@
   window->Show();
   return window.Pass();
 }
 
 }  // namespace
 
 namespace athena {
 
 typedef test::AthenaTestBase WindowManagerTest;
 
-TEST_F(WindowManagerTest, Empty) {
-}
-
 TEST_F(WindowManagerTest, OverviewModeBasics) {
   aura::test::TestWindowDelegate delegate;
   scoped_ptr<aura::Window> first(CreateWindow(&delegate));
   scoped_ptr<aura::Window> second(CreateWindow(&delegate));
 
   test::WindowManagerImplTestApi wm_api;
   aura::client::ParentWindowWithContext(
       first.get(), ScreenManager::Get()->GetContext(), gfx::Rect());
   aura::client::ParentWindowWithContext(
       second.get(), ScreenManager::Get()->GetContext(), gfx::Rect());
@@ skipping 315 matching lines @@
   WindowOverviewModeDelegate* overview_delegate = wm_api.wm();
   overview_delegate->OnSelectWindow(w1.get());
   EXPECT_FALSE(wm_api.GetSplitViewController()->IsSplitViewModeActive());
   EXPECT_TRUE(w1->IsVisible());
   // Make sure the windows that were in split-view mode are hidden.
   EXPECT_FALSE(w2->IsVisible());
   EXPECT_FALSE(w3->IsVisible());
 }
 
 }  // namespace athena