Rename OwnPtr::clear() to reset() in core/.

third_party/WebKit/Source/core/paint/PaintLayerStackingNode.h

 /*
  * Copyright (C) 2003, 2009, 2012 Apple Inc. All rights reserved.
  * Copyright (C) 2013 Intel Corporation. All rights reserved.
  *
  * Portions are Copyright (C) 1998 Netscape Communications Corporation.
  *
  * Other contributors:
  *   Robert O'Callahan <roc+@cs.cmu.edu>
  *   David Baron <dbaron@fas.harvard.edu>
  *   Christian Biesinger <cbiesinger@web.de>
@@ skipping 178 matching lines @@
 };
 
 inline void PaintLayerStackingNode::clearZOrderLists()
 {
     ASSERT(!isStackingContext());
 
 #if ENABLE(ASSERT)
     updateStackingParentForZOrderLists(0);
 #endif
 
-    m_posZOrderList.clear();
-    m_negZOrderList.clear();
+    m_posZOrderList.reset();
+    m_negZOrderList.reset();
 }
 
 inline void PaintLayerStackingNode::updateZOrderLists()
 {
     if (!m_zOrderListsDirty)
         return;
 
     if (!isStackingContext()) {
         clearZOrderLists();
         m_zOrderListsDirty = false;
@@ skipping 20 matching lines @@
 
 private:
     PaintLayerStackingNode* m_stackingNode;
     bool m_previousMutationAllowedState;
 };
 #endif
 
 } // namespace blink
 
 #endif // PaintLayerStackingNode_h