Renamed Tryjob label to Tryjob-Request
Renamed Tryjob label to Tryjob-Request

R=vadimsh@chromium.org, kmg@chromium.org
BUG=369665

Review URL: https://codereview.chromium.org/271263004

git-svn-id: 239fca9b83025a0b6f823aeeca02ba5be3d9fd76@270013 0039d316-1c4b-4281-b951-d872f2087c98

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