HeapSupplements are now just Supplements.

third_party/WebKit/Source/core/dom/DocumentParserTiming.h

 // Copyright 2016 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 DocumentParserTiming_h
 #define DocumentParserTiming_h
 
 #include "core/dom/Document.h"
 #include "platform/Supplementable.h"
 #include "platform/heap/Handle.h"
 #include "wtf/Noncopyable.h"
 
 namespace blink {
 
 class LocalFrame;
 
 // DocumentParserTiming is responsible for tracking parser-related timings for a
 // given document.
-class DocumentParserTiming final : public GarbageCollectedFinalized<DocumentParserTiming>, public HeapSupplement<Document> {
+class DocumentParserTiming final : public GarbageCollectedFinalized<DocumentParserTiming>, public Supplement<Document> {
     WTF_MAKE_NONCOPYABLE(DocumentParserTiming);
     USING_GARBAGE_COLLECTED_MIXIN(DocumentParserTiming);
 
 public:
     virtual ~DocumentParserTiming() {}
 
     static DocumentParserTiming& from(Document&);
 
     // markParserStart and markParserStop methods record the time that the
     // parser was first started/stopped, and notify that the document parser
@@ skipping 39 matching lines @@
     double m_parserStop = 0.0;
     double m_parserBlockedOnScriptLoadDuration = 0.0;
     bool m_parserDetached = false;
 
     Member<Document> m_document;
 };
 
 } // namespace blink
 
 #endif