Remove hint parameter from AttributeChanged methods and simplify style hint mechanism. b=211308 r+sr=bzbarsky

content/xslt/src/xpath/nsXPathResult.cpp

@@ -216,8 +216,7 @@ nsXPathResult::AttributeChanged(nsIDocument* aDocument,
                                 nsIContent* aContent,
                                 PRInt32 aNameSpaceID,
                                 nsIAtom* aAttribute,
-                                PRInt32 aModType,
-                                nsChangeHint aHint)
+                                PRInt32 aModType)
 {
     Invalidate();
     return NS_OK;

content/xslt/src/xslt/txMozillaXSLTProcessor.cpp

@@ -865,8 +865,7 @@ txMozillaXSLTProcessor::AttributeChanged(nsIDocument* aDocument,
                                          nsIContent* aContent,
                                          PRInt32 aNameSpaceID,
                                          nsIAtom* aAttribute,
-                                         PRInt32 aModType,
-                                         nsChangeHint aHint)
+                                         PRInt32 aModType)
 {
     mStylesheet = nsnull;
     return NS_OK;