Stop calling Platform::shutdown when a PPAPI/utility thread stop

content/utility/utility_thread_impl.cc

 // Copyright (c) 2012 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 "content/utility/utility_thread_impl.h"
 
 #include <stddef.h>
 #include <utility>
 
 #include "base/command_line.h"
@@ skipping 39 matching lines @@
                           .UseMojoChannel(true)
                           .Build()) {
   Init();
 }
 
 UtilityThreadImpl::~UtilityThreadImpl() {
 }
 
 void UtilityThreadImpl::Shutdown() {
   ChildThreadImpl::Shutdown();
-
-  if (blink_platform_impl_)
-    blink::Platform::shutdown();
 }
 
 void UtilityThreadImpl::ReleaseProcessIfNeeded() {
   if (batch_mode_)
     return;
 
   if (IsInBrowserProcess()) {
     // Close the channel to cause UtilityProcessHostImpl to be deleted. We need
     // to take a different code path than the multi-process case because that
     // depends on the child process going away to close the channel, but that
@@ skipping 53 matching lines @@
 }
 
 void UtilityThreadImpl::BindServiceFactoryRequest(
     shell::mojom::ServiceFactoryRequest request) {
   DCHECK(service_factory_);
   service_factory_bindings_.AddBinding(service_factory_.get(),
                                        std::move(request));
 }
 
 }  // namespace content