Add actiivity in factory

athena/activity/activity_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/activity/activity_manager_impl.h"
 
 #include "athena/activity/public/activity.h"
 #include "athena/activity/public/activity_factory.h"
 #include "athena/test/athena_test_base.h"
 #include "ui/aura/window.h"
 
 namespace athena {
 
 typedef test::AthenaTestBase ActivityManagerTest;
 
 TEST_F(ActivityManagerTest, Basic) {
   ActivityManagerImpl* activity_manager =
       static_cast<ActivityManagerImpl*>(ActivityManager::Get());
   Activity* activity1 = athena::ActivityFactory::Get()->CreateWebActivity(
       NULL, base::string16(), GURL());
-  activity_manager->AddActivity(activity1);
   EXPECT_EQ(1, activity_manager->num_activities());
 
   Activity* activity2 = athena::ActivityFactory::Get()->CreateWebActivity(
       NULL, base::string16(), GURL());
-  activity_manager->AddActivity(activity2);
   EXPECT_EQ(2, activity_manager->num_activities());
 
   Activity::Delete(activity1);
   EXPECT_EQ(1, activity_manager->num_activities());
 
   // Deleting the activity's window should delete the activity itself.
   delete activity2->GetWindow();
   EXPECT_EQ(0, activity_manager->num_activities());
 }
 
 }  // namespace athena