Use a new Supplement constructor for LocalFrame's supplements

third_party/WebKit/Source/modules/mediastream/UserMediaController.cpp

 /*
  * Copyright (C) 2012 Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
  *     notice, this list of conditions and the following disclaimer in the
@@ skipping 13 matching lines @@
 
 #include "modules/mediastream/UserMediaController.h"
 
 namespace blink {
 
 const char* UserMediaController::supplementName() {
   return "UserMediaController";
 }
 
 UserMediaController::UserMediaController(
+    LocalFrame& frame,
     std::unique_ptr<UserMediaClient> client)
-    : m_client(std::move(client)) {}
+    : Supplement<LocalFrame>(frame), m_client(std::move(client)) {}
 
 DEFINE_TRACE(UserMediaController) {
   Supplement<LocalFrame>::trace(visitor);
 }
 
-UserMediaController* UserMediaController::create(
-    std::unique_ptr<UserMediaClient> client) {
-  return new UserMediaController(std::move(client));
-}
-
 void provideUserMediaTo(LocalFrame& frame,
                         std::unique_ptr<UserMediaClient> client) {
   UserMediaController::provideTo(
       frame, UserMediaController::supplementName(),
-      UserMediaController::create(std::move(client)));
+      new UserMediaController(frame, std::move(client)));
 }
 
 }  // namespace blink