Send hostname to event_mon in annotated_run
Send hostname to event_mon in annotated_run

BUG=553988

Review URL: https://codereview.chromium.org/1436553003

git-svn-id: 239fca9b83025a0b6f823aeeca02ba5be3d9fd76@297539 0039d316-1c4b-4281-b951-d872f2087c98

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