Use stricter typing for NodeLists throughout the code base

Source/core/accessibility/AXTable.cpp

 /*
  * Copyright (C) 2008 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 22 matching lines @@
 #include "core/accessibility/AXTableCell.h"
 #include "core/accessibility/AXTableColumn.h"
 #include "core/accessibility/AXTableRow.h"
 #include "core/dom/ElementTraversal.h"
 #include "core/html/HTMLCollection.h"
 #include "core/html/HTMLTableCaptionElement.h"
 #include "core/html/HTMLTableCellElement.h"
 #include "core/html/HTMLTableColElement.h"
 #include "core/html/HTMLTableElement.h"
 #include "core/html/HTMLTableRowElement.h"
+#include "core/html/HTMLTableRowsCollection.h"
 #include "core/html/HTMLTableSectionElement.h"
 #include "core/rendering/RenderTableCell.h"
 
 namespace WebCore {
 
 using namespace HTMLNames;
 
 AXTable::AXTable(RenderObject* renderer)
     : AXRenderObject(renderer)
     , m_headerContainer(nullptr)
@@ skipping 77 matching lines @@
     if (elementHasAriaRole(tableElement->tFoot()))
         return false;
 
     RefPtrWillBeRawPtr<HTMLCollection> bodies = tableElement->tBodies();
     for (unsigned bodyIndex = 0; bodyIndex < bodies->length(); ++bodyIndex) {
         Element* bodyElement = bodies->item(bodyIndex);
         if (elementHasAriaRole(bodyElement))
             return false;
     }
 
-    RefPtrWillBeRawPtr<HTMLCollection> rows = tableElement->rows();
-    for (unsigned rowIndex = 0; rowIndex < rows->length(); ++rowIndex) {
+    RefPtrWillBeRawPtr<HTMLTableRowsCollection> rows = tableElement->rows();
+    unsigned rowCount = rows->length();
+    for (unsigned rowIndex = 0; rowIndex < rowCount; ++rowIndex) {
         Element* rowElement = rows->item(rowIndex);
         if (elementHasAriaRole(rowElement))
             return false;
         if (rowElement->hasTagName(trTag)) {
             HTMLTableRowElement* row = static_cast<HTMLTableRowElement*>(rowElement);
             RefPtrWillBeRawPtr<HTMLCollection> cells = row->cells();
             for (unsigned cellIndex = 0; cellIndex < cells->length(); ++cellIndex) {
                 if (elementHasAriaRole(cells->item(cellIndex)))
                     return false;
             }
@@ skipping 419 matching lines @@
     }
 
     // try the standard
     if (title.isEmpty())
         title = AXRenderObject::title();
 
     return title;
 }
 
 } // namespace WebCore