Fix content/shell including internals of content for service worker test.

content/common/mojo/service_registry_impl.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 "content/common/mojo/service_registry_impl.h"
 
 #include <utility>
 
 #include "mojo/common/common_type_converters.h"
 
 namespace content {
 
+ServiceRegistry* ServiceRegistry::Create() {
+  return new ServiceRegistryImpl;
+}
+
 ServiceRegistryImpl::ServiceRegistryImpl()
     : binding_(this), weak_factory_(this) {}
 
 ServiceRegistryImpl::~ServiceRegistryImpl() {
   while (!pending_connects_.empty()) {
     mojo::CloseRaw(pending_connects_.front().second);
     pending_connects_.pop();
   }
 }
 
@@ skipping 75 matching lines @@
   }
 
   it->second.Run(std::move(client_handle));
 }
 
 void ServiceRegistryImpl::OnConnectionError() {
   binding_.Close();
 }
 
 }  // namespace content