HeapSupplements are now just Supplements.

third_party/WebKit/Source/modules/encryptedmedia/HTMLMediaElementEncryptedMedia.h

 // Copyright 2014 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 HTMLMediaElementEncryptedMedia_h
 #define HTMLMediaElementEncryptedMedia_h
 
 #include "core/EventTypeNames.h"
 #include "core/dom/DOMTypedArray.h"
 #include "core/events/EventTarget.h"
 #include "modules/ModulesExport.h"
 #include "platform/Supplementable.h"
 #include "platform/heap/Handle.h"
 #include "public/platform/WebEncryptedMediaTypes.h"
 #include "public/platform/WebMediaPlayerEncryptedMediaClient.h"
 
 namespace blink {
 
 class ExceptionState;
 class HTMLMediaElement;
 class MediaKeys;
 class ScriptPromise;
 class ScriptState;
 class WebContentDecryptionModule;
 class WebMediaPlayer;
 
-class MODULES_EXPORT HTMLMediaElementEncryptedMedia final : public GarbageCollectedFinalized<HTMLMediaElementEncryptedMedia>, public HeapSupplement<HTMLMediaElement>, public WebMediaPlayerEncryptedMediaClient {
+class MODULES_EXPORT HTMLMediaElementEncryptedMedia final : public GarbageCollectedFinalized<HTMLMediaElementEncryptedMedia>, public Supplement<HTMLMediaElement>, public WebMediaPlayerEncryptedMediaClient {
     USING_GARBAGE_COLLECTED_MIXIN(HTMLMediaElementEncryptedMedia);
 public:
     static MediaKeys* mediaKeys(HTMLMediaElement&);
     static ScriptPromise setMediaKeys(ScriptState*, HTMLMediaElement&, MediaKeys*);
     DEFINE_STATIC_ATTRIBUTE_EVENT_LISTENER(encrypted);
 
     // WebMediaPlayerEncryptedMediaClient methods
     void encrypted(WebEncryptedMediaInitDataType, const unsigned char* initData, unsigned initDataLength) final;
     void didBlockPlaybackWaitingForKey() final;
     void didResumePlaybackBlockedForKey() final;
@@ skipping 24 matching lines @@
     // - attaching media keys, which shall have a boolean value
     bool m_isWaitingForKey;
     bool m_isAttachingMediaKeys;
 
     Member<MediaKeys> m_mediaKeys;
 };
 
 } // namespace blink
 
 #endif