Use ShellPtr type in ApplicationLoader instead of untyped handles

shell/android/native_viewport_application_loader.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 "shell/android/native_viewport_application_loader.h"
 
 #include "mojo/public/cpp/application/application_impl.h"
 #include "services/native_viewport/native_viewport_impl.h"
 #include "shell/android/keyboard_impl.h"
 
 namespace mojo {
 namespace shell {
 
 NativeViewportApplicationLoader::NativeViewportApplicationLoader() {
 }
 
 NativeViewportApplicationLoader::~NativeViewportApplicationLoader() {
 }
 
 void NativeViewportApplicationLoader::Load(ApplicationManager* manager,
                                            const GURL& url,
-                                           ScopedMessagePipeHandle shell_handle,
+                                           ShellPtr shell,
                                            LoadCallback callback) {
-  DCHECK(shell_handle.is_valid());
-  app_.reset(new ApplicationImpl(this, shell_handle.Pass()));
+  DCHECK(shell);
+  app_.reset(new ApplicationImpl(this, shell.Pass()));
 }
 
 void NativeViewportApplicationLoader::OnApplicationError(
     ApplicationManager* manager,
     const GURL& url) {
 }
 
 bool NativeViewportApplicationLoader::ConfigureIncomingConnection(
     mojo::ApplicationConnection* connection) {
   connection->AddService<NativeViewport>(this);
@@ skipping 17 matching lines @@
 
 void NativeViewportApplicationLoader::Create(ApplicationConnection* connection,
                                              InterfaceRequest<Gpu> request) {
   if (!gpu_state_)
     gpu_state_ = new gles2::GpuImpl::State;
   new gles2::GpuImpl(request.Pass(), gpu_state_);
 }
 
 }  // namespace shell
 }  // namespace mojo