bindings: Support sequence in callback function arguments

third_party/WebKit/Source/bindings/tests/idls/core/TestObject.idl

Index: third_party/WebKit/Source/bindings/tests/idls/core/TestObject.idl
diff --git a/third_party/WebKit/Source/bindings/tests/idls/core/TestObject.idl b/third_party/WebKit/Source/bindings/tests/idls/core/TestObject.idl
index 291f34d37a96f2c4d81d8b06983804ef1dbbe156..318dc8262d7f44ea95eea15d83352b8172dfb8f1 100644
--- a/third_party/WebKit/Source/bindings/tests/idls/core/TestObject.idl
+++ b/third_party/WebKit/Source/bindings/tests/idls/core/TestObject.idl
@@ -35,6 +35,8 @@ callback AnyCallbackFunctionOptionalAnyArg = any (optional any optionalAnyArg);
 [ExperimentalCallbackFunction] callback VoidExperimentalCallbackFunction = void ();
 [ExperimentalCallbackFunction] callback LongExperimentalCallbackFunction = long (long num1, long num2);
 [ExperimentalCallbackFunction] callback VoidCallbackFunctionInterfaceArg = void (HTMLDivElement divElement);
+[ExperimentalCallbackFunction] callback StringSequenceCallbackFunctionLongSequenceArg = sequence<DOMString> (sequence<long> arg);
+
 // No extended attributes on the interface; those go in TestInterface.idl
 interface TestObject {
     // Constants