Update the UI examples.

examples/ui/spinning_cube/spinning_cube_app.h

 // 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.
 
 #ifndef EXAMPLES_UI_SPINNING_CUBE_SPINNING_CUBE_APP_H_
 #define EXAMPLES_UI_SPINNING_CUBE_SPINNING_CUBE_APP_H_
 
-#include "base/bind.h"
-#include "base/memory/scoped_ptr.h"
-#include "mojo/common/binding_set.h"
-#include "mojo/public/c/system/main.h"
-#include "mojo/public/cpp/application/application_connection.h"
-#include "mojo/public/cpp/application/application_impl.h"
-#include "mojo/public/cpp/system/core.h"
-#include "mojo/public/cpp/system/macros.h"
-#include "mojo/services/ui/views/interfaces/view_provider.mojom.h"
+#include "mojo/ui/view_provider_app.h"
 
 namespace examples {
 
-class SpinningCubeApp : public mojo::ApplicationDelegate,
-                        public mojo::InterfaceFactory<mojo::ui::ViewProvider>,
-                        public mojo::ui::ViewProvider {
+class SpinningCubeApp : public mojo::ui::ViewProviderApp {
  public:
   SpinningCubeApp();
   ~SpinningCubeApp() override;
 
+  bool CreateView(
+      const std::string& connection_url,
+      mojo::InterfaceRequest<mojo::ServiceProvider> services,
+      mojo::ServiceProviderPtr exposed_services,
+      const mojo::ui::ViewProvider::CreateViewCallback& callback) override;
+
  private:
-  // |ApplicationDelegate|:
-  void Initialize(mojo::ApplicationImpl* app) override;
-  bool ConfigureIncomingConnection(
-      mojo::ApplicationConnection* connection) override;
-
-  // |InterfaceFactory<mojo::ui::ViewProvider>|:
-  void Create(mojo::ApplicationConnection* connection,
-              mojo::InterfaceRequest<mojo::ui::ViewProvider> request) override;
-
-  // |ViewProvider|:
-  void CreateView(mojo::InterfaceRequest<mojo::ServiceProvider> services,
-                  mojo::ServiceProviderPtr exposed_services,
-                  const CreateViewCallback& callback) override;
-
-  mojo::ApplicationImpl* app_impl_;
-  mojo::BindingSet<mojo::ui::ViewProvider> bindings_;
-
   DISALLOW_COPY_AND_ASSIGN(SpinningCubeApp);
 };
 
 }  // namespace examples
 
 #endif  // EXAMPLES_UI_SPINNING_CUBE_SPINNING_CUBE_APP_H_