Revert "Remove OwnPtr from Blink."

third_party/WebKit/Source/core/events/ScopedEventQueue.cpp

 /*
  * 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:
  *
  *     * 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 16 matching lines @@
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 #include "core/events/ScopedEventQueue.h"
 
 #include "core/events/Event.h"
 #include "core/events/EventDispatchMediator.h"
 #include "core/events/EventDispatcher.h"
 #include "core/events/EventTarget.h"
-#include "wtf/PtrUtil.h"
-#include <memory>
+#include "wtf/OwnPtr.h"
 
 namespace blink {
 
 ScopedEventQueue* ScopedEventQueue::s_instance = nullptr;
 
 ScopedEventQueue::ScopedEventQueue()
     : m_scopingLevel(0)
 {
 }
 
 ScopedEventQueue::~ScopedEventQueue()
 {
     ASSERT(!m_scopingLevel);
     ASSERT(!m_queuedEventDispatchMediators.size());
 }
 
 void ScopedEventQueue::initialize()
 {
     ASSERT(!s_instance);
-    std::unique_ptr<ScopedEventQueue> instance = wrapUnique(new ScopedEventQueue);
-    s_instance = instance.release();
+    OwnPtr<ScopedEventQueue> instance = adoptPtr(new ScopedEventQueue);
+    s_instance = instance.leakPtr();
 }
 
 void ScopedEventQueue::enqueueEventDispatchMediator(EventDispatchMediator* mediator)
 {
     if (shouldQueueEvents())
         m_queuedEventDispatchMediators.append(mediator);
     else
         dispatchEvent(mediator);
 }
 
@@ skipping 28 matching lines @@
 
 void ScopedEventQueue::decrementScopingLevel()
 {
     ASSERT(m_scopingLevel);
     m_scopingLevel--;
     if (!m_scopingLevel)
         dispatchAllEvents();
 }
 
 } // namespace blink