Oilpan: convert remaining OwnPtr EventQueue uses.

Source/core/dom/MainThreadTaskRunnerTest.cpp

 /*
  * Copyright (C) 2008 Apple Inc. All Rights Reserved.
  * 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:
  * 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
@@ skipping 32 matching lines @@
     NullEventQueue() { }
     virtual ~NullEventQueue() { }
     virtual bool enqueueEvent(PassRefPtrWillBeRawPtr<Event>) OVERRIDE { return true; }
     virtual bool cancelEvent(Event*) OVERRIDE { return true; }
     virtual void close() OVERRIDE { }
 };
 
 class NullExecutionContext : public RefCountedWillBeGarbageCollectedFinalized<NullExecutionContext>, public ExecutionContext {
     WILL_BE_USING_GARBAGE_COLLECTED_MIXIN(NullExecutionContext);
 public:
-    void trace(Visitor* visitor) { ExecutionContext::trace(visitor); }
+    NullExecutionContext();
+
+    virtual EventQueue* eventQueue() const OVERRIDE { return m_queue.get(); }
+    virtual bool tasksNeedSuspension() { return m_tasksNeedSuspension; }
+
+    void setTasksNeedSuspention(bool flag) { m_tasksNeedSuspension = flag; }
+
+    void trace(Visitor* visitor)
+    {
+        visitor->trace(m_queue);
+        ExecutionContext::trace(visitor);
+    }
+
 #if !ENABLE(OILPAN)
     using RefCounted<NullExecutionContext>::ref;
     using RefCounted<NullExecutionContext>::deref;
 
     virtual void refExecutionContext() OVERRIDE { ref(); }
     virtual void derefExecutionContext() OVERRIDE { deref(); }
 #endif
-    virtual EventQueue* eventQueue() const OVERRIDE { return m_queue.get(); }
-    virtual bool tasksNeedSuspension() { return m_tasksNeedSuspension; }
-
-    void setTasksNeedSuspention(bool flag) { m_tasksNeedSuspension = flag; }
-
-    NullExecutionContext();
 
 private:
     bool m_tasksNeedSuspension;
-    OwnPtr<EventQueue> m_queue;
+    OwnPtrWillBeMember<EventQueue> m_queue;
 };
 
 NullExecutionContext::NullExecutionContext()
     : m_tasksNeedSuspension(false)
-    , m_queue(adoptPtr(new NullEventQueue()))
+    , m_queue(adoptPtrWillBeNoop(new NullEventQueue()))
 {
 }
 
 class MarkingBooleanTask FINAL : public ExecutionContextTask {
 public:
     static PassOwnPtr<MarkingBooleanTask> create(bool* toBeMarked)
     {
         return adoptPtr(new MarkingBooleanTask(toBeMarked));
     }
 
@@ skipping 48 matching lines @@
     bool isMarked = false;
 
     context->setTasksNeedSuspention(true);
     runner->postTask(MarkingBooleanTask::create(&isMarked));
     runner.clear();
     WebCore::testing::runPendingTasks();
     EXPECT_FALSE(isMarked);
 }
 
 }