athena: Add the concept of Activity and related managers.

athena/main/athena_launcher.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/main/athena_launcher.h"
 
+#include "athena/activity/public/activity_manager.h"
 #include "athena/home/public/home_card.h"
 #include "athena/main/placeholder.h"
 #include "athena/screen/public/screen_manager.h"
 #include "athena/wm/public/window_manager.h"
 #include "base/memory/scoped_ptr.h"
 #include "ui/aura/window_property.h"
 #include "ui/wm/core/visibility_controller.h"
 
 namespace athena {
 struct RootWindowState;
@@ skipping 16 matching lines @@
   RootWindowState* root_window_state = new RootWindowState;
   root_window->SetProperty(kRootWindowStateKey, root_window_state);
 
   root_window_state->visibility_client.reset(new ::wm::VisibilityController);
   aura::client::SetVisibilityClient(root_window,
                                     root_window_state->visibility_client.get());
 
   athena::ScreenManager::Create(root_window);
   athena::WindowManager::Create();
   athena::HomeCard::Create();
+  athena::ActivityManager::Create();
 
   SetupBackgroundImage();
 }
 
 void ShutdownAthena() {
+  athena::ActivityManager::Shutdown();
   athena::HomeCard::Shutdown();
   athena::WindowManager::Shutdown();
   athena::ScreenManager::Shutdown();
 }
 
 }  // namespace athena