bindings: Support sequence in callback function arguments

third_party/WebKit/Source/core/testing/CallbackFunctionTest.idl

Index: third_party/WebKit/Source/core/testing/CallbackFunctionTest.idl
diff --git a/third_party/WebKit/Source/core/testing/CallbackFunctionTest.idl b/third_party/WebKit/Source/core/testing/CallbackFunctionTest.idl
index c9bec4326e6f8c0ca658547f1d6444816cf372cf..2aae24f2de0997b81027d34a1bc67c2f334d6ade 100644
--- a/third_party/WebKit/Source/core/testing/CallbackFunctionTest.idl
+++ b/third_party/WebKit/Source/core/testing/CallbackFunctionTest.idl
@@ -3,7 +3,9 @@
 // found in the LICENSE file.
 
 [ExperimentalCallbackFunction] callback TestCallback = DOMString (DOMString message1, DOMString message2);
+[ExperimentalCallbackFunction] callback TestSequenceCallback = sequence<DOMString> (sequence<long> numbers);
 
 interface CallbackFunctionTest {
     [CallWith=ScriptState, RaisesException] DOMString testCallback(TestCallback callback, DOMString message1, DOMString message2);
+    [CallWith=ScriptState, RaisesException] sequence<DOMString> testSequenceCallback(TestSequenceCallback callback, sequence<long> numbers);
 };