Support FormData on WorkerGlobalScope.

Source/bindings/tests/idls/TestInterfaceNamedConstructor.idl

Index: Source/bindings/tests/idls/TestInterfaceNamedConstructor.idl
diff --git a/Source/bindings/tests/idls/TestInterfaceNamedConstructor.idl b/Source/bindings/tests/idls/TestInterfaceNamedConstructor.idl
index f346a7469b7c683d9be58b2c43fbd9ca8f0369b9..03fa90b75c95549557569e577575dfcadb2e29cb 100644
--- a/Source/bindings/tests/idls/TestInterfaceNamedConstructor.idl
+++ b/Source/bindings/tests/idls/TestInterfaceNamedConstructor.idl
@@ -33,6 +33,7 @@
         [Default=Undefined] optional boolean defaultUndefinedOptionalBooleanArg,
         [Default=Undefined] optional long defaultUndefinedOptionalLongArg,
         [Default=Undefined] optional DOMString defaultUndefinedOptionalStringArg,
+        optional DOMString optionalStringArg,

[Nils Barth (inactive), 2014/04/09 09:36:38]

Could you move this to the bottom?
(Generally optional arguments w/o defaults should go at the end,
so that optional arguments w/ defaults can be implemented as required
arguments. This isn't required per spec, but it's more realistic.)

[sof, 2014/04/09 10:53:16]

Done.

         [Default=NullString] optional DOMString defaultNullStringOptionalstringArg),
     RaisesException=Constructor,
 ] interface TestInterfaceNamedConstructor {