Remove unnecessary Platform::createMessagePortChannel method

content/worker/worker_webkitplatformsupport_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/worker/worker_webkitplatformsupport_impl.h"
 
 #include "base/files/file_path.h"
 #include "base/logging.h"
 #include "base/message_loop/message_loop_proxy.h"
 #include "base/platform_file.h"
@@ skipping 124 matching lines @@
   NOTREACHED();
   return 0;
 }
 
 bool WorkerWebKitPlatformSupportImpl::isLinkVisited(
     unsigned long long link_hash) {
   NOTREACHED();
   return false;
 }
 
-WebMessagePortChannel*
-WorkerWebKitPlatformSupportImpl::createMessagePortChannel() {
-  return new WebMessagePortChannelImpl(child_thread_loop_.get());
-}
-
 void WorkerWebKitPlatformSupportImpl::createMessageChannel(
     blink::WebMessagePortChannel** channel1,
     blink::WebMessagePortChannel** channel2) {
-  *channel1 = new WebMessagePortChannelImpl(child_thread_loop_.get());
-  *channel2 = new WebMessagePortChannelImpl(child_thread_loop_.get());
-  (*channel1)->entangle(*channel2);
-  (*channel2)->entangle(*channel1);
+  WebMessagePortChannelImpl::CreatePair(
+      child_thread_loop_.get(), channel1, channel2);
 }
 
 void WorkerWebKitPlatformSupportImpl::setCookies(
     const WebURL& url,
     const WebURL& first_party_for_cookies,
     const WebString& value) {
   NOTREACHED();
 }
 
 WebString WorkerWebKitPlatformSupportImpl::cookies(
@@ skipping 147 matching lines @@
     return;
   QuotaDispatcher::ThreadSpecificInstance(
       thread_safe_sender_.get(),
       quota_message_filter_.get())->QueryStorageUsageAndQuota(
           storage_partition,
           static_cast<quota::StorageType>(type),
           QuotaDispatcher::CreateWebStorageQuotaCallbacksWrapper(callbacks));
 }
 
 }  // namespace content