Oilpan: have PendingScripts trace their script elements.

Source/core/dom/ScriptRunner.h

 /*
  * Copyright (C) 2010 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 10 matching lines @@
  * 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 ScriptRunner_h
 #define ScriptRunner_h
 
 #include "core/fetch/ResourcePtr.h"
 #include "platform/Timer.h"
+#include "platform/heap/Handle.h"
 #include "wtf/HashMap.h"
 #include "wtf/Noncopyable.h"
 #include "wtf/PassOwnPtr.h"
 #include "wtf/Vector.h"
 
 namespace WebCore {
 
 class ScriptResource;
 class Document;
 class PendingScript;
 class ScriptLoader;
 
-class ScriptRunner {
-    WTF_MAKE_NONCOPYABLE(ScriptRunner); WTF_MAKE_FAST_ALLOCATED;
+class ScriptRunner FINAL : public NoBaseWillBeGarbageCollectedFinalized<ScriptRunner> {
+    WTF_MAKE_NONCOPYABLE(ScriptRunner); WTF_MAKE_FAST_ALLOCATED_WILL_BE_REMOVED;
 public:
-    static PassOwnPtr<ScriptRunner> create(Document* document) { return adoptPtr(new ScriptRunner(document)); }
+    static PassOwnPtrWillBeRawPtr<ScriptRunner> create(Document* document)
+    {
+        return adoptPtrWillBeNoop(new ScriptRunner(document));
+    }
     ~ScriptRunner();
 
     enum ExecutionType { ASYNC_EXECUTION, IN_ORDER_EXECUTION };
     void queueScriptForExecution(ScriptLoader*, ResourcePtr<ScriptResource>, ExecutionType);
     bool hasPendingScripts() const { return !m_scriptsToExecuteSoon.isEmpty() || !m_scriptsToExecuteInOrder.isEmpty() || !m_pendingAsyncScripts.isEmpty(); }
     void suspend();
     void resume();
     void notifyScriptReady(ScriptLoader*, ExecutionType);
     void notifyScriptLoadError(ScriptLoader*, ExecutionType);
 
+    void trace(Visitor*);
+
 private:
     explicit ScriptRunner(Document*);
 
     void timerFired(Timer<ScriptRunner>*);
 
-    Document* m_document;
+    RawPtrWillBeMember<Document> m_document;
+    // FIXME: Oilpan: consider using heap vectors and hash map here;
+    // PendingScript does have a (trivial) destructor, however.
     Vector<PendingScript> m_scriptsToExecuteInOrder;
     Vector<PendingScript> m_scriptsToExecuteSoon; // http://www.whatwg.org/specs/web-apps/current-work/#set-of-scripts-that-will-execute-as-soon-as-possible
     HashMap<ScriptLoader*, PendingScript> m_pendingAsyncScripts;
     Timer<ScriptRunner> m_timer;
 };
 
 }
 
 #endif