Add use counters to determine the fate of DOMError

Source/core/dom/DOMError.idl

 /*
  * Copyright (C) 2007 Apple Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions
  * are met:
  *
  * 1.  Redistributions of source code must retain the above copyright
  *     notice, this list of conditions and the following disclaimer.
  * 2.  Redistributions in binary form must reproduce the above copyright
@@ skipping 13 matching lines @@
  * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
  * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF
  * THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
 // https://dom.spec.whatwg.org/#domerror
 
 // FIXME: DOMError has been removed from the spec. crbug.com/460725
 [
     Constructor(DOMString name, optional DOMString message = null),
-    GarbageCollected
+    GarbageCollected,
+    Measure,
 ] interface DOMError {
-    readonly attribute DOMString name;
-    readonly attribute DOMString message;
+    [Measure] readonly attribute DOMString name;
+    [Measure] readonly attribute DOMString message;
 };