CallbackAllowUndefined   60 Source/bindings/v8/V8Callback.h     if (value->IsUndefined() && (acceptedValues & CallbackAllowUndefined))
CallbackAllowUndefined  139 Source/bindings/v8/custom/V8GeolocationCustom.cpp     OwnPtr<PositionErrorCallback> positionErrorCallback = createFunctionOnlyCallback<V8PositionErrorCallback>(info[1], 2, succeeded, info.GetIsolate(), exceptionState, CallbackAllowUndefined | CallbackAllowNull);
CallbackAllowUndefined  164 Source/bindings/v8/custom/V8GeolocationCustom.cpp     OwnPtr<PositionErrorCallback> positionErrorCallback = createFunctionOnlyCallback<V8PositionErrorCallback>(info[1], 2, succeeded, info.GetIsolate(), exceptionState, CallbackAllowUndefined | CallbackAllowNull);