Making Mandoline apps notice when all the objects they vended are gone so that it can terminate.

components/native_viewport/native_viewport_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 "components/native_viewport/native_viewport_application_delegate.h"
 
 #include "base/command_line.h"
 #include "components/native_viewport/native_viewport_impl.h"
 #include "components/native_viewport/public/cpp/args.h"
 #include "mojo/application/public/cpp/application_connection.h"
@@ skipping 31 matching lines @@
   connection->AddService<mojo::NativeViewport>(this);
   connection->AddService<mojo::Gpu>(this);
   return true;
 }
 
 void NativeViewportApplicationDelegate::Create(
     mojo::ApplicationConnection* connection,
     mojo::InterfaceRequest<mojo::NativeViewport> request) {
   if (!gpu_state_.get())
     gpu_state_ = new gles2::GpuState;
-  new NativeViewportImpl(is_headless_, gpu_state_, request.Pass());
+  new NativeViewportImpl(is_headless_, gpu_state_, request.Pass(),
+                         app_lifetime_helper_.CreateAppRefCount());
 }
 
 void NativeViewportApplicationDelegate::Create(
     mojo::ApplicationConnection* connection,
     mojo::InterfaceRequest<mojo::Gpu> request) {
   if (!gpu_state_.get())
     gpu_state_ = new gles2::GpuState;
   new gles2::GpuImpl(request.Pass(), gpu_state_);
 }
 
 }  // namespace native_viewport