HeapSupplements are now just Supplements.

third_party/WebKit/Source/core/timing/WorkerGlobalScopePerformance.h

 /*
  * Copyright (C) 2013 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 21 matching lines @@
 #define WorkerGlobalScopePerformance_h
 
 #include "core/timing/WorkerPerformance.h"
 #include "platform/Supplementable.h"
 #include "platform/heap/Handle.h"
 
 namespace blink {
 
 class WorkerGlobalScope;
 
-class WorkerGlobalScopePerformance final : public GarbageCollected<WorkerGlobalScopePerformance>, public HeapSupplement<WorkerGlobalScope> {
+class WorkerGlobalScopePerformance final : public GarbageCollected<WorkerGlobalScopePerformance>, public Supplement<WorkerGlobalScope> {
     USING_GARBAGE_COLLECTED_MIXIN(WorkerGlobalScopePerformance);
 public:
     static WorkerGlobalScopePerformance& from(WorkerGlobalScope&);
 
     static WorkerPerformance* performance(WorkerGlobalScope&);
 
     DECLARE_VIRTUAL_TRACE();
 
 private:
     WorkerGlobalScopePerformance();
 
     WorkerPerformance* performance(WorkerGlobalScope*);
     static const char* supplementName();
 
     Member<WorkerPerformance> m_performance;
 };
 
 } // namespace blink
 
 #endif // WorkerGlobalScopePerformance_h