athena: Add the concept of Activity and related managers.

athena/main/athena_main.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 "apps/shell/app/shell_main_delegate.h"
 #include "apps/shell/browser/shell_browser_main_delegate.h"
 #include "apps/shell/browser/shell_desktop_controller.h"
 #include "athena/home/public/home_card.h"
 #include "athena/main/placeholder.h"
 #include "athena/screen/public/screen_manager.h"
+#include "athena/task/public/task_manager.h"
 #include "athena/wm/public/window_manager.h"
 #include "base/memory/scoped_ptr.h"
 #include "content/public/app/content_main.h"
 #include "ui/aura/window_tree_host.h"
 #include "ui/wm/core/visibility_controller.h"
 
 class AthenaBrowserMainDelegate : public apps::ShellBrowserMainDelegate {
  public:
   AthenaBrowserMainDelegate() {}
   virtual ~AthenaBrowserMainDelegate() {}
 
   // apps::ShellBrowserMainDelegate:
   virtual void Start(content::BrowserContext* context) OVERRIDE {
     aura::Window* root_window =
         apps::ShellDesktopController::instance()->GetWindowTreeHost()->window();
     visibility_controller_.reset(new ::wm::VisibilityController);
     aura::client::SetVisibilityClient(root_window,
                                       visibility_controller_.get());
 
     athena::ScreenManager::Create(root_window);
     athena::WindowManager::Create();
     athena::HomeCard::Create();
+    athena::TaskManager::Create();
 
     SetupBackgroundImage();
     CreateTestWindows();
+    CreateTestPages(context);
   }
 
   virtual void Shutdown() OVERRIDE {
+    athena::TaskManager::Shutdown();
     athena::HomeCard::Shutdown();
     athena::WindowManager::Shutdown();
     athena::ScreenManager::Shutdown();
     visibility_controller_.reset();
   }
 
   scoped_ptr< ::wm::VisibilityController> visibility_controller_;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(AthenaBrowserMainDelegate);
@@ skipping 16 matching lines @@
 
 int main(int argc, const char** argv) {
   AthenaMainDelegate delegate;
   content::ContentMainParams params(&delegate);
 
   params.argc = argc;
   params.argv = argv;
 
   return content::ContentMain(params);
 }