Oilpan: move LiveNodeList collections to the heap.

Source/core/accessibility/AXTable.cpp

Index: Source/core/accessibility/AXTable.cpp
diff --git a/Source/core/accessibility/AXTable.cpp b/Source/core/accessibility/AXTable.cpp
index 0d7f53f97d67fb92b1a02e008b5877aab0b23e04..efec030faca837df0229d5fd03774802d096ede6 100644
--- a/Source/core/accessibility/AXTable.cpp
+++ b/Source/core/accessibility/AXTable.cpp
@@ -130,21 +130,21 @@ bool AXTable::isDataTable() const
     if (elementHasAriaRole(tableElement->tFoot()))
         return false;
 
-    RefPtr<HTMLCollection> bodies = tableElement->tBodies();
+    RefPtrWillBeRawPtr<HTMLCollection> bodies = tableElement->tBodies();
     for (unsigned bodyIndex = 0; bodyIndex < bodies->length(); ++bodyIndex) {
         Element* bodyElement = bodies->item(bodyIndex);
         if (elementHasAriaRole(bodyElement))
             return false;
     }
 
-    RefPtr<HTMLCollection> rows = tableElement->rows();
+    RefPtrWillBeRawPtr<HTMLCollection> rows = tableElement->rows();
     for (unsigned rowIndex = 0; rowIndex < rows->length(); ++rowIndex) {
         Element* rowElement = rows->item(rowIndex);
         if (elementHasAriaRole(rowElement))
             return false;
         if (rowElement->hasTagName(trTag)) {
             HTMLTableRowElement* row = static_cast<HTMLTableRowElement*>(rowElement);
-            RefPtr<HTMLCollection> cells = row->cells();
+            RefPtrWillBeRawPtr<HTMLCollection> cells = row->cells();
             for (unsigned cellIndex = 0; cellIndex < cells->length(); ++cellIndex) {
                 if (elementHasAriaRole(cells->item(cellIndex)))
                     return false;