Componentization: fix SupplementTracing<0>::~SupplementTracing<0>(void) already defined.

Source/core/html/imports/HTMLImportsController.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 13 matching lines @@
  * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
  * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
  * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #ifndef HTMLImportsController_h
 #define HTMLImportsController_h
 
-#include "core/dom/DocumentSupplementable.h"
+#include "core/dom/Document.h"
 #include "platform/heap/Handle.h"
 #include "wtf/FastAllocBase.h"
 #include "wtf/Vector.h"
 
 namespace blink {
 
 class FetchRequest;
 class HTMLImport;
 class HTMLImportChild;
 class HTMLImportChildClient;
 class HTMLImportLoader;
 class HTMLImportTreeRoot;
 class KURL;
 
-class HTMLImportsController final : public NoBaseWillBeGarbageCollectedFinalized<HTMLImportsController>, public DocumentSupplement {
+class HTMLImportsController final : public NoBaseWillBeGarbageCollectedFinalized<HTMLImportsController>, public WillBeHeapSupplement<Document> {
     WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(HTMLImportsController);
     WTF_MAKE_FAST_ALLOCATED_WILL_BE_REMOVED(HTMLImportsController);
 public:
     static const char* supplementName();
     static void provideTo(Document&);
     static void removeFrom(Document&);
 
     explicit HTMLImportsController(Document&);
     virtual ~HTMLImportsController();
 
@@ skipping 19 matching lines @@
     void dispose();
 
     OwnPtrWillBeMember<HTMLImportTreeRoot> m_root;
     using LoaderList = WillBeHeapVector<OwnPtrWillBeMember<HTMLImportLoader>>;
     LoaderList m_loaders;
 };
 
 } // namespace blink
 
 #endif // HTMLImportsController_h