Remove unnecessary Platform::createMessagePortChannel method

content/renderer/renderer_webkitplatformsupport_impl.cc

Index: content/renderer/renderer_webkitplatformsupport_impl.cc
diff --git a/content/renderer/renderer_webkitplatformsupport_impl.cc b/content/renderer/renderer_webkitplatformsupport_impl.cc
index 367bc537ce1c06fea87af3c2746a46f63d8c0e75..ca92d5e5568cd56aa2d2c99ab959a19ddc66828d 100644
--- a/content/renderer/renderer_webkitplatformsupport_impl.cc
+++ b/content/renderer/renderer_webkitplatformsupport_impl.cc
@@ -315,18 +315,11 @@ bool RendererWebKitPlatformSupportImpl::isLinkVisited(
   return GetContentClient()->renderer()->IsLinkVisited(link_hash);
 }
 
-blink::WebMessagePortChannel*
-RendererWebKitPlatformSupportImpl::createMessagePortChannel() {
-  return new WebMessagePortChannelImpl(child_thread_loop_.get());
-}
-
 void RendererWebKitPlatformSupportImpl::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);
 }
 
 blink::WebPrescientNetworking*