partly import changes from tenfourfox:

- update ESR base to 115; update EV roots, pins, TLDs, TZs; security pullup (55284dd80)

parser/html/nsHtml5OwningUTF16Buffer.h

@@ -9,6 +9,9 @@
 
 class nsHtml5OwningUTF16Buffer : public nsHtml5UTF16Buffer
 {
+  public:
+    NS_INLINE_DECL_THREADSAFE_REFCOUNTING(nsHtml5OwningUTF16Buffer)
+
   private:
 
     /**
@@ -48,11 +51,6 @@ public:
      * Swap start, end and buffer fields with another object.
      */
     void Swap(nsHtml5OwningUTF16Buffer* aOther);
-
-    nsrefcnt AddRef();
-    nsrefcnt Release();
-  private:
-    mozilla::ThreadSafeAutoRefCnt mRefCnt;
 };
 
 #endif // nsHtml5OwningUTF16Buffer_h