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

Source/core/dom/CSSSelectorWatch.cpp

 /*
  * 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 35 matching lines @@
 
 CSSSelectorWatch::CSSSelectorWatch(Document& document)
     : m_document(document)
     , m_callbackSelectorChangeTimer(this, &CSSSelectorWatch::callbackSelectorChangeTimerFired)
     , m_timerExpirations(0)
 {
 }
 
 CSSSelectorWatch& CSSSelectorWatch::from(Document& document)
 {
-    CSSSelectorWatch* watch = static_cast<CSSSelectorWatch*>(DocumentSupplement::from(document, kSupplementName));
+    CSSSelectorWatch* watch = static_cast<CSSSelectorWatch*>(WillBeHeapSupplement<Document>::from(document, kSupplementName));
     if (!watch) {
         watch = new CSSSelectorWatch(document);
-        DocumentSupplement::provideTo(document, kSupplementName, adoptPtrWillBeNoop(watch));
+        WillBeHeapSupplement<Document>::provideTo(document, kSupplementName, adoptPtrWillBeNoop(watch));
     }
     return *watch;
 }
 
 void CSSSelectorWatch::callbackSelectorChangeTimerFired(Timer<CSSSelectorWatch>*)
 {
     // Should be ensured by updateSelectorMatches():
     ASSERT(!m_addedSelectors.isEmpty() || !m_removedSelectors.isEmpty());
 
     if (m_timerExpirations < 1) {
@@ skipping 88 matching lines @@
         rule->setProperties(callbackPropertySet);
         m_watchedCallbackSelectors.append(rule.release());
     }
     document().changedSelectorWatch();
 }
 
 DEFINE_TRACE(CSSSelectorWatch)
 {
     visitor->trace(m_watchedCallbackSelectors);
     visitor->trace(m_document);
-    DocumentSupplement::trace(visitor);
+    WillBeHeapSupplement<Document>::trace(visitor);
 }
 
 } // namespace blink