HeapSupplements are now just Supplements.

third_party/WebKit/Source/modules/filesystem/DraggedIsolatedFileSystemImpl.h

 /*
  * 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:
  *
  *     * 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 23 matching lines @@
 #include "core/clipboard/DataObject.h"
 #include "core/clipboard/DraggedIsolatedFileSystem.h"
 #include "platform/heap/Handle.h"
 #include "wtf/Forward.h"
 #include "wtf/text/WTFString.h"
 
 namespace blink {
 
 class DOMFileSystem;
 
-class DraggedIsolatedFileSystemImpl final : public GarbageCollectedFinalized<DraggedIsolatedFileSystemImpl>, public DraggedIsolatedFileSystem, public HeapSupplement<DataObject> {
+class DraggedIsolatedFileSystemImpl final : public GarbageCollectedFinalized<DraggedIsolatedFileSystemImpl>, public DraggedIsolatedFileSystem, public Supplement<DataObject> {
     USING_GARBAGE_COLLECTED_MIXIN(DraggedIsolatedFileSystemImpl);
 public:
     static DraggedIsolatedFileSystemImpl* create(DataObject& host, const String& filesystemId)
     {
         return new DraggedIsolatedFileSystemImpl(host, filesystemId);
     }
 
     static DOMFileSystem* getDOMFileSystem(DataObject* host, ExecutionContext*);
 
     static const char* supplementName();
     static DraggedIsolatedFileSystemImpl* from(DataObject*);
 
     DECLARE_TRACE();
 
     static void prepareForDataObject(DataObject*, const String& filesystemId);
 
 private:
     DraggedIsolatedFileSystemImpl(DataObject& host, const String& filesystemId);
 
     Member<DOMFileSystem> m_filesystem;
 };
 
 } // namespace blink
 
 #endif // DraggedIsolatedFileSystemImpl_h