Revert "Remove OwnPtr from Blink."

third_party/WebKit/Source/modules/storage/StorageArea.h

 /*
  * Copyright (C) 2009 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 11 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.
  */
 
 #ifndef StorageArea_h
 #define StorageArea_h
 
 #include "core/frame/LocalFrameLifecycleObserver.h"
 #include "modules/ModulesExport.h"
 #include "platform/heap/Handle.h"
+#include "wtf/OwnPtr.h"
+#include "wtf/PassOwnPtr.h"
 #include "wtf/text/WTFString.h"
-#include <memory>
 
 namespace blink {
 
 class ExceptionState;
 class LocalFrame;
 class KURL;
 class SecurityOrigin;
 class Storage;
 class WebStorageArea;
 class WebStorageNamespace;
 
 enum StorageType {
     LocalStorage,
     SessionStorage
 };
 
 class MODULES_EXPORT StorageArea final : public GarbageCollectedFinalized<StorageArea>, public LocalFrameLifecycleObserver {
     USING_GARBAGE_COLLECTED_MIXIN(StorageArea);
 public:
-    static StorageArea* create(std::unique_ptr<WebStorageArea>, StorageType);
+    static StorageArea* create(PassOwnPtr<WebStorageArea>, StorageType);
 
     virtual ~StorageArea();
 
     // The HTML5 DOM Storage API
     unsigned length(ExceptionState&, LocalFrame* sourceFrame);
     String key(unsigned index, ExceptionState&, LocalFrame* sourceFrame);
     String getItem(const String& key, ExceptionState&, LocalFrame* sourceFrame);
     void setItem(const String& key, const String& value, ExceptionState&, LocalFrame* sourceFrame);
     void removeItem(const String& key, ExceptionState&, LocalFrame* sourceFrame);
     void clear(ExceptionState&, LocalFrame* sourceFrame);
     bool contains(const String& key, ExceptionState&, LocalFrame* sourceFrame);
 
     bool canAccessStorage(LocalFrame*);
 
     static void dispatchLocalStorageEvent(const String& key, const String& oldValue, const String& newValue,
         SecurityOrigin*, const KURL& pageURL, WebStorageArea* sourceAreaInstance);
     static void dispatchSessionStorageEvent(const String& key, const String& oldValue, const String& newValue,
         SecurityOrigin*, const KURL& pageURL, const WebStorageNamespace&, WebStorageArea* sourceAreaInstance);
 
     DECLARE_TRACE();
 
 private:
-    StorageArea(std::unique_ptr<WebStorageArea>, StorageType);
+    StorageArea(PassOwnPtr<WebStorageArea>, StorageType);
 
     static bool isEventSource(Storage*, WebStorageArea* sourceAreaInstance);
 
-    std::unique_ptr<WebStorageArea> m_storageArea;
+    OwnPtr<WebStorageArea> m_storageArea;
     StorageType m_storageType;
     bool m_canAccessStorageCachedResult;
 };
 
 } // namespace blink
 
 #endif // StorageArea_h