Merge "Fix memory order and race bugs in Refbase.h & RefBase.cpp" am: 62212954ef am: d657e639cf
am: fdad5af164

* commit 'fdad5af164af9db300c11b07e7a5606e96fa1034':
  Fix memory order and race bugs in Refbase.h & RefBase.cpp

Change-Id: I3f02135be975b2dcbf4155832cbb9c0c78438a19