Revert "Remove OwnPtr from Blink."

third_party/WebKit/Source/wtf/OwnPtrCommon.h

Index: third_party/WebKit/Source/wtf/OwnPtrCommon.h
diff --git a/third_party/WebKit/Source/core/events/PageTransitionEvent.h b/third_party/WebKit/Source/wtf/OwnPtrCommon.h
similarity index 50%
copy from third_party/WebKit/Source/core/events/PageTransitionEvent.h
copy to third_party/WebKit/Source/wtf/OwnPtrCommon.h
index 2e9cd82240f1efa0520abe29186c30381b09c546..89e24895029c0dac37743809b1784df3992a3703 100644
--- a/third_party/WebKit/Source/core/events/PageTransitionEvent.h
+++ b/third_party/WebKit/Source/wtf/OwnPtrCommon.h
@@ -1,5 +1,8 @@
 /*
  * Copyright (C) 2009 Apple Inc. All rights reserved.
+ * Copyright (C) 2009 Torch Mobile, Inc.
+ * Copyright (C) 2010 Company 100 Inc.
+ * Copyright (C) 2013 Intel Corporation. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
@@ -23,46 +26,52 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-#ifndef PageTransitionEvent_h
-#define PageTransitionEvent_h
+#ifndef WTF_OwnPtrCommon_h
+#define WTF_OwnPtrCommon_h
 
-#include "core/events/Event.h"
-#include "core/events/PageTransitionEventInit.h"
+#include "wtf/Assertions.h"
+#include "wtf/TypeTraits.h"
 
-namespace blink {
+namespace WTF {
 
-class PageTransitionEvent final : public Event {
-    DEFINE_WRAPPERTYPEINFO();
-public:
-    static PageTransitionEvent* create()
-    {
-        return new PageTransitionEvent;
-    }
-    static PageTransitionEvent* create(const AtomicString& type, bool persisted)
+class RefCountedBase;
+class ThreadSafeRefCountedBase;
+
+template<typename T>
+struct IsRefCounted {
+    STATIC_ONLY(IsRefCounted);
+    static const bool value = IsSubclass<T, RefCountedBase>::value
+        || IsSubclass<T, ThreadSafeRefCountedBase>::value;
+};
+
+template <typename T>
+struct OwnedPtrDeleter {
+    STATIC_ONLY(OwnedPtrDeleter);
+    static void deletePtr(T* ptr)
     {
-        return new PageTransitionEvent(type, persisted);
+        static_assert(!IsRefCounted<T>::value, "use RefPtr for RefCounted objects");
+        static_assert(sizeof(T) > 0, "type must be complete");
+        delete ptr;
     }
-    static PageTransitionEvent* create(const AtomicString& type, const PageTransitionEventInit& initializer)
+};
+
+template <typename T>
+struct OwnedPtrDeleter<T[]> {
+    STATIC_ONLY(OwnedPtrDeleter);
+    static void deletePtr(T* ptr)
     {
-        return new PageTransitionEvent(type, initializer);
+        static_assert(!IsRefCounted<T>::value, "use RefPtr for RefCounted objects");
+        static_assert(sizeof(T) > 0, "type must be complete");
+        delete[] ptr;
     }
+};
 
-    ~PageTransitionEvent() override;
-
-    const AtomicString& interfaceName() const override;
-
-    bool persisted() const { return m_persisted; }
-
-    DECLARE_VIRTUAL_TRACE();
-
-private:
-    PageTransitionEvent();
-    PageTransitionEvent(const AtomicString& type, bool persisted);
-    PageTransitionEvent(const AtomicString&, const PageTransitionEventInit&);
-
-    bool m_persisted;
+template <class T, int n>
+struct OwnedPtrDeleter<T[n]> {
+    STATIC_ONLY(OwnedPtrDeleter);
+    static_assert(sizeof(T) < 0, "do not use array with size as type");
 };
 
-} // namespace blink
+} // namespace WTF
 
-#endif // PageTransitionEvent_h
+#endif // WTF_OwnPtrCommon_h