Backing out Bug 125295. (Smoktests not finished) Active Accessibility: HTML <button> element should be a leaf. r=jgaunt, sr=hewitt, a=shaver

accessible/src/html/nsHTMLFormControlAccessible.cpp

@@ -212,7 +212,7 @@ NS_IMETHODIMP nsHTMLButtonAccessible::GetAccName(nsAWritableString& _retval)
 // ----- HTML 4 Button: can contain arbitrary HTML content -----
 
 nsHTML4ButtonAccessible::nsHTML4ButtonAccessible(nsIDOMNode* aNode, nsIWeakReference* aShell):
-nsLeafAccessible(aNode, aShell)
+nsBlockAccessible(aNode, aShell)
 { 
 }
 

accessible/src/html/nsHTMLFormControlAccessible.h

@@ -78,7 +78,7 @@ public:
   NS_IMETHOD AccDoAction(PRUint8 index);
 };
 
-class nsHTML4ButtonAccessible : public nsLeafAccessible
+class nsHTML4ButtonAccessible : public nsBlockAccessible
 {
 
 public: