Remove unnecessary Platform::createMessagePortChannel method

content/ppapi_plugin/ppapi_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/ppapi_plugin/ppapi_webkitplatformsupport_impl.h"
 
 #include <map>
 
 #include "base/logging.h"
 #include "base/strings/string16.h"
@@ skipping 165 matching lines @@
   NOTREACHED();
   return 0;
 }
 
 bool PpapiWebKitPlatformSupportImpl::isLinkVisited(
     unsigned long long link_hash) {
   NOTREACHED();
   return false;
 }
 
-blink::WebMessagePortChannel*
-PpapiWebKitPlatformSupportImpl::createMessagePortChannel() {
+void PpapiWebKitPlatformSupportImpl::createMessageChannel(
+    blink::WebMessagePortChannel** channel1,
+    blink::WebMessagePortChannel** channel2) {
   NOTREACHED();
-  return NULL;
+  *channel1 = NULL;
+  *channel2 = NULL;
 }
 
 void PpapiWebKitPlatformSupportImpl::setCookies(
     const blink::WebURL& url,
     const blink::WebURL& first_party_for_cookies,
     const blink::WebString& value) {
   NOTREACHED();
 }
 
 blink::WebString PpapiWebKitPlatformSupportImpl::cookies(
@@ skipping 47 matching lines @@
   NOTREACHED();
 }
 
 int PpapiWebKitPlatformSupportImpl::databaseDeleteFile(
     const blink::WebString& vfs_file_name, bool sync_dir) {
   NOTREACHED();
   return 0;
 }
 
 }  // namespace content