Fix for bug #97387: WRMB:iframe with frameborder="no" does not work

Call ParseFrameborderValue() with value returned from InNavQuirksMode(),
instead of hardcoded PR_TRUE.

r=karnaze@netscape.com  sr=attinasi@netscape.com

content/html/content/src/nsHTMLIFrameElement.cpp

@@ -226,7 +226,7 @@ nsHTMLIFrameElement::StringToAttribute(nsIAtom* aAttribute,
     }
   }
   else if (aAttribute == nsHTMLAtoms::frameborder) {
-    if (ParseFrameborderValue(PR_TRUE, aValue, aResult)) {
+    if (ParseFrameborderValue(!InNavQuirksMode(mDocument), aValue, aResult)) {
       return NS_CONTENT_ATTR_HAS_VALUE;
     }
   }