Trigger experimental recipe-based trybots for 1% of Chromium CLs.

BUG=317931

Review URL: https://codereview.chromium.org/133993005

git-svn-id: svn://svn.chromium.org/chrome/trunk/tools/commit-queue@244188 0039d316-1c4b-4281-b951-d872f2087c98
2 files changed