Have LiveNodeListBase::ownerNode() return a reference

Source/core/html/HTMLTableElement.cpp

 /*
  * Copyright (C) 1997 Martin Jones (mjones@kde.org)
  *           (C) 1997 Torben Weis (weis@kde.org)
  *           (C) 1998 Waldo Bastian (bastian@kde.org)
  *           (C) 1999 Lars Knoll (knoll@kde.org)
  *           (C) 1999 Antti Koivisto (koivisto@kde.org)
  * Copyright (C) 2003, 2004, 2005, 2006, 2008, 2010, 2011 Apple Inc. All rights reserved.
  *
  * This library is free software; you can redistribute it and/or
  * modify it under the terms of the GNU Library General Public
@@ skipping 177 matching lines @@
     if (index < -1) {
         exceptionState.throwDOMException(IndexSizeError, "The index provided (" + String::number(index) + ") is less than -1.");
         return nullptr;
     }
 
     RefPtr<Node> protectFromMutationEvents(this);
 
     RefPtr<HTMLTableRowElement> lastRow = nullptr;
     RefPtr<HTMLTableRowElement> row = nullptr;
     if (index == -1)
-        lastRow = HTMLTableRowsCollection::lastRow(this);
+        lastRow = HTMLTableRowsCollection::lastRow(*this);
     else {
         for (int i = 0; i <= index; ++i) {
-            row = HTMLTableRowsCollection::rowAfter(this, lastRow.get());
+            row = HTMLTableRowsCollection::rowAfter(*this, lastRow.get());
             if (!row) {
                 if (i != index) {
                     exceptionState.throwDOMException(IndexSizeError, "The index provided (" + String::number(index) + ") is greater than the number of rows in the table (" + String::number(i) + ").");
                     return nullptr;
                 }
                 break;
             }
             lastRow = row;
         }
     }
@@ skipping 20 matching lines @@
 void HTMLTableElement::deleteRow(int index, ExceptionState& exceptionState)
 {
     if (index < -1) {
         exceptionState.throwDOMException(IndexSizeError, "The index provided (" + String::number(index) + ") is less than -1.");
         return;
     }
 
     HTMLTableRowElement* row = 0;
     int i = 0;
     if (index == -1)
-        row = HTMLTableRowsCollection::lastRow(this);
+        row = HTMLTableRowsCollection::lastRow(*this);
     else {
         for (i = 0; i <= index; ++i) {
-            row = HTMLTableRowsCollection::rowAfter(this, row);
+            row = HTMLTableRowsCollection::rowAfter(*this, row);
             if (!row)
                 break;
         }
     }
     if (!row) {
         exceptionState.throwDOMException(IndexSizeError, "The index provided (" + String::number(index) + ") is greater than the number of rows in the table (" + String::number(i) + ").");
         return;
     }
     row->remove(exceptionState);
 }
@@ skipping 297 matching lines @@
 {
     return getAttribute(rulesAttr);
 }
 
 const AtomicString& HTMLTableElement::summary() const
 {
     return getAttribute(summaryAttr);
 }
 
 }