Revert "Remove OwnPtr from Blink."

third_party/WebKit/Source/core/css/invalidation/InvalidationSet.h

 /*
  * Copyright (C) 2014 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 22 matching lines @@
 
 #include "core/CoreExport.h"
 #include "wtf/Allocator.h"
 #include "wtf/Assertions.h"
 #include "wtf/Forward.h"
 #include "wtf/HashSet.h"
 #include "wtf/RefCounted.h"
 #include "wtf/RefPtr.h"
 #include "wtf/text/AtomicStringHash.h"
 #include "wtf/text/StringHash.h"
-#include <memory>
 
 namespace blink {
 
 class Element;
 class TracedValue;
 
 enum InvalidationType {
     InvalidateDescendants,
     InvalidateSiblings
 };
@@ skipping 86 matching lines @@
 
 private:
     void destroy();
 
     HashSet<AtomicString>& ensureClassSet();
     HashSet<AtomicString>& ensureIdSet();
     HashSet<AtomicString>& ensureTagNameSet();
     HashSet<AtomicString>& ensureAttributeSet();
 
     // FIXME: optimize this if it becomes a memory issue.
-    std::unique_ptr<HashSet<AtomicString>> m_classes;
-    std::unique_ptr<HashSet<AtomicString>> m_ids;
-    std::unique_ptr<HashSet<AtomicString>> m_tagNames;
-    std::unique_ptr<HashSet<AtomicString>> m_attributes;
+    OwnPtr<HashSet<AtomicString>> m_classes;
+    OwnPtr<HashSet<AtomicString>> m_ids;
+    OwnPtr<HashSet<AtomicString>> m_tagNames;
+    OwnPtr<HashSet<AtomicString>> m_attributes;
 
     unsigned m_type : 1;
 
     // If true, all descendants might be invalidated, so a full subtree recalc is required.
     unsigned m_allDescendantsMightBeInvalid : 1;
 
     // If true, the element or sibling itself is invalid.
     unsigned m_invalidatesSelf : 1;
 
     // If true, all descendants which are custom pseudo elements must be invalidated.
@@ skipping 57 matching lines @@
     InvalidationSetVector descendants;
     InvalidationSetVector siblings;
 };
 
 DEFINE_TYPE_CASTS(DescendantInvalidationSet, InvalidationSet, value, value->isDescendantInvalidationSet(), value.isDescendantInvalidationSet());
 DEFINE_TYPE_CASTS(SiblingInvalidationSet, InvalidationSet, value, value->isSiblingInvalidationSet(), value.isSiblingInvalidationSet());
 
 } // namespace blink
 
 #endif // InvalidationSet_h