Fix Windows bustage by making these virtual again, at least for now (the only cost of which should be bloating some vtables). b=238099

content/html/style/src/nsCSSRule.h

@@ -52,8 +52,8 @@ public:
   virtual ~nsCSSRule(void);
 
   // for implementing nsISupports
-  nsrefcnt AddRef();
-  nsrefcnt Release();
+  NS_IMETHOD_(nsrefcnt) AddRef();
+  NS_IMETHOD_(nsrefcnt) Release();
 protected:
   nsAutoRefCnt mRefCnt;
   NS_DECL_OWNINGTHREAD

layout/style/nsCSSRule.h

@@ -52,8 +52,8 @@ public:
   virtual ~nsCSSRule(void);
 
   // for implementing nsISupports
-  nsrefcnt AddRef();
-  nsrefcnt Release();
+  NS_IMETHOD_(nsrefcnt) AddRef();
+  NS_IMETHOD_(nsrefcnt) Release();
 protected:
   nsAutoRefCnt mRefCnt;
   NS_DECL_OWNINGTHREAD