Move WebAXObject.cpp to core/ (WIP)

third_party/WebKit/Source/modules/accessibility/AXARIAGridRow.h

 /*
  * 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 27 matching lines @@
 class AXARIAGridRow final : public AXTableRow {
   WTF_MAKE_NONCOPYABLE(AXARIAGridRow);
 
  private:
   AXARIAGridRow(LayoutObject*, AXObjectCacheImpl&);
 
  public:
   static AXARIAGridRow* Create(LayoutObject*, AXObjectCacheImpl&);
   ~AXARIAGridRow() override;
 
-  void HeaderObjectsForRow(AXObjectVector&) override;
+  void HeaderObjectsForRow(AXObjectImplVector&) override;
 
  private:
   bool IsARIATreeGridRow() const override;
 };
 
 }  // namespace blink
 
 #endif  // AXARIAGridRow_h