Remove the Vector::append overload that takes a Vector

Source/core/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 56 matching lines @@
         columnCount = rowCellCount;
 
     row->setRowIndex((int)m_rows.size());
     m_rows.append(row);
 
     // Try adding the row if it's not ignoring accessibility,
     // otherwise add its children (the cells) as the grid's children.
     if (!row->accessibilityIsIgnored())
         m_children.append(row);
     else
-        m_children.append(row->children());
+        m_children.appendVector(row->children());
 
     appendedRows.add(row);
     return true;
 }
 
 void AXARIAGrid::addChildren()
 {
     ASSERT(!m_haveChildren);
 
     if (!isAXTable()) {
@@ skipping 36 matching lines @@
         if (!column->accessibilityIsIgnored())
             m_children.append(column);
     }
 
     AXObject* headerContainerObject = headerContainer();
     if (headerContainerObject && !headerContainerObject->accessibilityIsIgnored())
         m_children.append(headerContainerObject);
 }
 
 } // namespace WebCore