IDL: Support callback interface in overload resolution

third_party/WebKit/Source/bindings/scripts/v8_interface.py

Index: third_party/WebKit/Source/bindings/scripts/v8_interface.py
diff --git a/third_party/WebKit/Source/bindings/scripts/v8_interface.py b/third_party/WebKit/Source/bindings/scripts/v8_interface.py
index 848ef266c6d927760bd1cf7c707eedc4ac602890..1c577d5d14e7e46d68c823a3d082ca73ebf3780e 100644
--- a/third_party/WebKit/Source/bindings/scripts/v8_interface.py
+++ b/third_party/WebKit/Source/bindings/scripts/v8_interface.py
@@ -1107,9 +1107,9 @@ def resolution_tests_methods(effective_overloads):
             # Array in overloaded method: http://crbug.com/262383
             yield '%s->IsArray()' % cpp_value, method
     for idl_type, method in idl_types_methods:
-        if idl_type.is_dictionary or idl_type.name == 'Dictionary':
-            # FIXME: should be '{1}->IsObject() && !{1}->IsDate() && !{1}->IsRegExp()'.format(cpp_value)
-            # FIXME: the IsDate and IsRegExp checks can be skipped if we've
+        if idl_type.is_dictionary or idl_type.name == 'Dictionary' or idl_type.is_callback_interface:
+            # FIXME: should be '{1}->IsObject() && !{1}->IsRegExp()'.format(cpp_value)
+            # FIXME: the IsRegExp checks can be skipped if we've
             # already generated tests for them.
             yield '%s->IsObject()' % cpp_value, method