Switching client.nacl waterfall to bot_update.
Switching client.nacl waterfall to bot_update.

BUG=None
TEST=None
R=iannucci@chromium.org

Review URL: https://codereview.chromium.org/800513008

git-svn-id: 239fca9b83025a0b6f823aeeca02ba5be3d9fd76@293592 0039d316-1c4b-4281-b951-d872f2087c98

eunchong/build,eunchong/build,eunchong/build,eunchong/build