Revert of Add template parameter to ElementTraversal to iterate over Elements of a specific type

Source/core/html/HTMLTableRowsCollection.cpp

Index: Source/core/html/HTMLTableRowsCollection.cpp
diff --git a/Source/core/html/HTMLTableRowsCollection.cpp b/Source/core/html/HTMLTableRowsCollection.cpp
index 18bacf530e8f0655b6749b1417bcf3b14d837a6a..21efc2cb3945bcc7c270e51f37c3832656d863f8 100644
--- a/Source/core/html/HTMLTableRowsCollection.cpp
+++ b/Source/core/html/HTMLTableRowsCollection.cpp
@@ -55,7 +55,11 @@
 
 static inline HTMLTableRowElement* findTableRowElementInChildren(Element& current)
 {
-    return Traversal<HTMLTableRowElement>::firstWithin(current);
+    for (Element* child = ElementTraversal::firstWithin(current); child; child = ElementTraversal::nextSibling(*child)) {
+        if (isHTMLTableRowElement(child))
+            return toHTMLTableRowElement(child);
+    }
+    return 0;
 }
 
 HTMLTableRowElement* HTMLTableRowsCollection::rowAfter(HTMLTableElement& table, HTMLTableRowElement* previous)
@@ -65,8 +69,10 @@
     // Start by looking for the next row in this section.
     // Continue only if there is none.
     if (previous && previous->parentNode() != table) {
-        if (HTMLTableRowElement* row = Traversal<HTMLTableRowElement>::nextSibling(*previous))
-            return row;
+        for (child = ElementTraversal::nextSibling(*previous); child; child = ElementTraversal::nextSibling(*child)) {
+            if (isHTMLTableRowElement(child))
+                return toHTMLTableRowElement(child);
+        }
     }
 
     // If still looking at head sections, find the first row in the next head section.