Patch Dartium branch of Chromium 1700 to run performance tests on buildbot

The buildbot code requires an option in run_perf.py that was added after branch 1700.

R=vsm@google.com

Review URL: https://codereview.chromium.org/149113006

git-svn-id: svn://svn.chromium.org/chrome/branches/dart/1700/src@249028 0039d316-1c4b-4281-b951-d872f2087c98
1 file changed