Remove TreatNullAs=NullString for HTMLTable*Element

Source/core/html/HTMLTableElement.idl

Index: Source/core/html/HTMLTableElement.idl
diff --git a/Source/core/html/HTMLTableElement.idl b/Source/core/html/HTMLTableElement.idl
index e31e70352e8e9d932e8eb5c377e7a4d5afe5c83a..4cd6d6f573b94d83bc3caa36fdc5bdea21e30659 100644
--- a/Source/core/html/HTMLTableElement.idl
+++ b/Source/core/html/HTMLTableElement.idl
@@ -25,17 +25,17 @@ interface HTMLTableElement : HTMLElement {
 
     readonly attribute HTMLCollection rows;
     readonly attribute HTMLCollection tBodies;
-    [Reflect, TreatNullAs=NullString] attribute DOMString align;
+    [Reflect] attribute DOMString align;
     [Reflect, TreatNullAs=NullString] attribute DOMString bgColor;
-    [Reflect, TreatNullAs=NullString] attribute DOMString border;
+    [Reflect] attribute DOMString border;
     [Reflect, TreatNullAs=NullString] attribute DOMString cellPadding;
     [Reflect, TreatNullAs=NullString] attribute DOMString cellSpacing;
 
-    [Reflect, TreatNullAs=NullString] attribute DOMString frame;
+    [Reflect] attribute DOMString frame;
 
-    [Reflect, TreatNullAs=NullString] attribute DOMString rules;
-    [Reflect, TreatNullAs=NullString] attribute DOMString summary;
-    [Reflect, TreatNullAs=NullString] attribute DOMString width;
+    [Reflect] attribute DOMString rules;
+    [Reflect] attribute DOMString summary;
+    [Reflect] attribute DOMString width;
 
     HTMLElement createTHead();
     void deleteTHead();
@@ -48,4 +48,3 @@ interface HTMLTableElement : HTMLElement {
     [RaisesException] HTMLElement insertRow([Default=Undefined] optional long index);
     [RaisesException] void deleteRow([Default=Undefined] optional long index);
 };
-