HeapSupplements are now just Supplements.

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

 /*
  * 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 38 matching lines @@
 
 // static
 const char* DraggedIsolatedFileSystemImpl::supplementName()
 {
     ASSERT(isMainThread());
     return "DraggedIsolatedFileSystemImpl";
 }
 
 DraggedIsolatedFileSystemImpl* DraggedIsolatedFileSystemImpl::from(DataObject* dataObject)
 {
-    return static_cast<DraggedIsolatedFileSystemImpl*>(HeapSupplement<DataObject>::from(dataObject, supplementName()));
+    return static_cast<DraggedIsolatedFileSystemImpl*>(Supplement<DataObject>::from(dataObject, supplementName()));
 }
 
 DraggedIsolatedFileSystemImpl::DraggedIsolatedFileSystemImpl(DataObject& host, const String& filesystemId)
 {
     host.setFilesystemId(filesystemId);
 }
 
 DEFINE_TRACE(DraggedIsolatedFileSystemImpl)
 {
     visitor->trace(m_filesystem);
-    HeapSupplement<DataObject>::trace(visitor);
+    Supplement<DataObject>::trace(visitor);
 }
 
 void DraggedIsolatedFileSystemImpl::prepareForDataObject(DataObject* dataObject, const String& filesystemId)
 {
     DraggedIsolatedFileSystemImpl* fileSystem = create(*dataObject, filesystemId);
     DraggedIsolatedFileSystemImpl::provideTo(*dataObject, DraggedIsolatedFileSystemImpl::supplementName(), fileSystem);
 }
 
 } // namespace blink