Bug 2034352 - Make URL::SearchParams return an already_AddRefed

dom/url/URL.cpp

@@ -1802,11 +1802,11 @@ URL::CanParse(const GlobalObject& aGlobal, const nsAString& aURL,
   return true;
 }
 
-URLSearchParams*
+already_AddRefed<URLSearchParams>
 URL::SearchParams()
 {
   CreateSearchParamsIfNeeded();
-  return mSearchParams;
+  return do_AddRef(mSearchParams);
 }
 
 bool IsChromeURI(nsIURI* aURI)

dom/url/URL.h

@@ -149,7 +149,7 @@ public:
   virtual void
   SetSearch(const nsAString& aSearch, ErrorResult& aRv);
 
-  URLSearchParams* SearchParams();
+  already_AddRefed<URLSearchParams> SearchParams();
 
   virtual void
   GetHash(nsAString& aHost, ErrorResult& aRv) const = 0;