tree da77a21b83e07240943399c1822383af14e281f3
parent eef991389c7f739dd80bbe6e4a3699322c12dcfb
author Tao Bao <tbao@google.com> 1440718881 -0700
committer Tao Bao <tbao@google.com> 1441137455 -0700

updater: Clean up C codes.

Replace C-string with std::string, pointers with references, and
variable-size arrays in struct with std::vector.

Change-Id: I57f361a0e58286cbcd113e9be225981da56721b2