Merge "Fix memory order and race bugs in Refbase.h & RefBase.cpp"
am: 62212954ef

* commit '62212954efc9cd4ddfa91f100ec4ecec27315e42':
  Fix memory order and race bugs in Refbase.h & RefBase.cpp

Change-Id: I4b17f76ec7162090deb84b5ec83b3e765dddb186