Merge "Change hash set to use noexcept" am: d1bdb7c am: aee721b
am: 1ffbf4e

* commit '1ffbf4e4b3be217eb978c0d614eb679ff5a3393c':
  Change hash set to use noexcept

Change-Id: Ie5adc0af7430ac9e92355360cb8d49b956cc596c