fix for compile

houxiao

2017-08-10 dea825c24eea9fa92dd9f0ccf2e24af4ed89683c

 VisitFace/RtspNativeCodec/app/libs/capnproto/include/kj/thread.h

@@ -53,7 +53,10 @@

private:
  struct ThreadState {
    ThreadState(Function<void()> func);

    Function<void()> func;
    Function<void(Function<void()>)> initializer;
    kj::Maybe<kj::Exception> exception;

    unsigned int refcount;