Bug 1415352: Part 1a - Pass subject principal through to ParseAttribute. r=bz

This is necessary in order to parse style attributes using the subject
principal of the caller, rather than defaulting to the page principal.

MozReview-Commit-ID: GIshajQ28la

dom/html/HTMLSelectElement.cpp

@@ -1257,6 +1257,7 @@ bool
 HTMLSelectElement::ParseAttribute(int32_t aNamespaceID,
                                   nsAtom* aAttribute,
                                   const nsAString& aValue,
+                                  nsIPrincipal* aMaybeScriptedPrincipal,
                                   nsAttrValue& aResult)
 {
   if (kNameSpaceID_None == aNamespaceID) {
@@ -1268,7 +1269,7 @@ HTMLSelectElement::ParseAttribute(int32_t aNamespaceID,
     }
   }
   return nsGenericHTMLElement::ParseAttribute(aNamespaceID, aAttribute, aValue,
-                                              aResult);
+                                              aMaybeScriptedPrincipal, aResult);
 }
 
 void