Oilpan: Prepare moving AXObject to heap

Source/modules/accessibility/AXARIAGrid.cpp

 /*
  * Copyright (C) 2009 Apple 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
@@ skipping 28 matching lines @@
 
 AXARIAGrid::AXARIAGrid(LayoutObject* layoutObject, AXObjectCacheImpl& axObjectCache)
     : AXTable(layoutObject, axObjectCache)
 {
 }
 
 AXARIAGrid::~AXARIAGrid()
 {
 }
 
-PassRefPtr<AXARIAGrid> AXARIAGrid::create(LayoutObject* layoutObject, AXObjectCacheImpl& axObjectCache)
+PassRefPtrWillBeRawPtr<AXARIAGrid> AXARIAGrid::create(LayoutObject* layoutObject, AXObjectCacheImpl& axObjectCache)
 {
-    return adoptRef(new AXARIAGrid(layoutObject, axObjectCache));
+    return adoptRefWillBeNoop(new AXARIAGrid(layoutObject, axObjectCache));
 }
 
 bool AXARIAGrid::addTableCellChild(AXObject* child, HashSet<AXObject*>& appendedRows, unsigned& columnCount)
 {
     if (!child || !child->isTableRow() || child->ariaRoleAttribute() != RowRole)
         return false;
 
     AXTableRow* row = toAXTableRow(child);
     if (appendedRows.contains(row))
         return false;
@@ skipping 63 matching lines @@
         if (!column->accessibilityIsIgnored())
             m_children.append(column);
     }
 
     AXObject* headerContainerObject = headerContainer();
     if (headerContainerObject && !headerContainerObject->accessibilityIsIgnored())
         m_children.append(headerContainerObject);
 }
 
 } // namespace blink