Oilpan: Move all supplements of Page, Document, and WorkerClients to the managed heap.

Source/core/dom/CSSSelectorWatch.h

Index: Source/core/dom/CSSSelectorWatch.h
diff --git a/Source/core/dom/CSSSelectorWatch.h b/Source/core/dom/CSSSelectorWatch.h
index 92ec1519f9c4f1186f92ab1a0c5897d0b38acbee..35756c7a24bfb0c2e9a037922181af82438e1440 100644
--- a/Source/core/dom/CSSSelectorWatch.h
+++ b/Source/core/dom/CSSSelectorWatch.h
@@ -43,7 +43,8 @@
 
 namespace WebCore {
 
-class CSSSelectorWatch : public DocumentSupplement {
+class CSSSelectorWatch FINAL : public NoBaseWillBeGarbageCollectedFinalized<CSSSelectorWatch>, public DocumentSupplement {
+    WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(CSSSelectorWatch);
 public:
     virtual ~CSSSelectorWatch() { }
 
@@ -54,15 +55,15 @@ public:
 
     void updateSelectorMatches(const Vector<String>& removedSelectors, const Vector<String>& addedSelectors);
 
-    virtual void trace(Visitor*) OVERRIDE { }
+    virtual void trace(Visitor*) OVERRIDE;
 
 private:
-    CSSSelectorWatch(Document&);
+    explicit CSSSelectorWatch(Document&);
     void callbackSelectorChangeTimerFired(Timer<CSSSelectorWatch>*);
 
     Document& m_document;
 
-    WillBePersistentHeapVector<RefPtrWillBeMember<StyleRule> > m_watchedCallbackSelectors;
+    WillBeHeapVector<RefPtrWillBeMember<StyleRule> > m_watchedCallbackSelectors;
 
     // Maps a CSS selector string with a -webkit-callback property to the number
     // of matching RenderStyle objects in this document.