Add use counters to determine the fate of DOMError

Source/core/dom/DOMError.idl

Index: Source/core/dom/DOMError.idl
diff --git a/Source/core/dom/DOMError.idl b/Source/core/dom/DOMError.idl
index 5e49b8193de4d65eaa1e371d9107031894ccbad8..d0c954475628ed41222e6afb4123ac5d20409a2f 100644
--- a/Source/core/dom/DOMError.idl
+++ b/Source/core/dom/DOMError.idl
@@ -31,8 +31,9 @@
 // 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;
 };