mash: Terminate the task_viewer app when window is closed.

mash/task_viewer/task_viewer_application_delegate.cc

 // Copyright 2015 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 "mash/task_viewer/task_viewer_application_delegate.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include "base/bind.h"
@@ skipping 20 matching lines @@
 
 using ListenerRequest =
     mojo::InterfaceRequest<mojo::shell::mojom::ApplicationManagerListener>;
 using mojo::shell::mojom::ApplicationInfoPtr;
 
 class TaskViewer : public views::WidgetDelegateView,
                    public ui::TableModel,
                    public views::ButtonListener,
                    public mojo::shell::mojom::ApplicationManagerListener {
  public:
-  explicit TaskViewer(ListenerRequest request)
+  TaskViewer(ListenerRequest request, scoped_ptr<mojo::AppRefCount> app)
       : binding_(this, std::move(request)),
+        app_(std::move(app)),
         table_view_(nullptr),
         table_view_parent_(nullptr),
         kill_button_(
             new views::LabelButton(this, base::ASCIIToUTF16("Kill Process"))),
         observer_(nullptr) {
     // We don't want to show an empty UI on startup, so just block until we
     // receive the initial set of applications.
     binding_.WaitForIncomingMethodCall();
 
     table_view_ = new views::TableView(this, GetColumns(), views::TEXT_ONLY,
@@ skipping 139 matching lines @@
     // TODO(beng): use resources.
     pid_column.title  = base::ASCIIToUTF16("PID");
     pid_column.width = 50;
     pid_column.sortable = true;
     columns.push_back(pid_column);
 
     return columns;
   }
 
   mojo::Binding<mojo::shell::mojom::ApplicationManagerListener> binding_;
+  scoped_ptr<mojo::AppRefCount> app_;
 
   views::TableView* table_view_;
   views::View* table_view_parent_;
   views::LabelButton* kill_button_;
   ui::TableModelObserver* observer_;
 
   std::vector<scoped_ptr<ApplicationInfo>> applications_;
 
   DISALLOW_COPY_AND_ASSIGN(TaskViewer);
 };
@@ skipping 10 matching lines @@
   aura_init_.reset(new views::AuraInit(app, "views_mus_resources.pak"));
   views::WindowManagerConnection::Create(app);
 
   mojo::shell::mojom::ApplicationManagerPtr application_manager;
   app->ConnectToService("mojo:shell", &application_manager);
 
   mojo::shell::mojom::ApplicationManagerListenerPtr listener;
   ListenerRequest request = GetProxy(&listener);
   application_manager->AddListener(std::move(listener));
 
-  TaskViewer* task_viewer = new TaskViewer(std::move(request));
+  TaskViewer* task_viewer = new TaskViewer(
+      std::move(request), app->app_lifetime_helper()->CreateAppRefCount());
   views::Widget* window = views::Widget::CreateWindowWithBounds(
       task_viewer, gfx::Rect(10, 10, 500, 500));
   window->Show();
 }
 
 }  // namespace task_viewer
 }  // namespace main