HeapSupplements are now just Supplements.

third_party/WebKit/Source/modules/mediastream/NavigatorUserMedia.h

 // Copyright 2015 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.
 
 #ifndef NavigatorUserMedia_h
 #define NavigatorUserMedia_h
 
 #include "platform/Supplementable.h"
 #include "platform/heap/Handle.h"
 
 namespace blink {
 
 class Navigator;
 class MediaDevices;
 
-class NavigatorUserMedia final : public GarbageCollected<NavigatorUserMedia>, public HeapSupplement<Navigator> {
+class NavigatorUserMedia final : public GarbageCollected<NavigatorUserMedia>, public Supplement<Navigator> {
     USING_GARBAGE_COLLECTED_MIXIN(NavigatorUserMedia)
 public:
     static MediaDevices* mediaDevices(Navigator&);
     DECLARE_VIRTUAL_TRACE();
 
 private:
     NavigatorUserMedia();
     MediaDevices* getMediaDevices();
     static const char* supplementName();
     static NavigatorUserMedia& from(Navigator&);
 
     Member<MediaDevices> m_mediaDevices;
 };
 
 } // namespace blink
 
 #endif