git cl try: don't skip presubmit builders, but set dry_run property.
git cl try: don't skip presubmit builders, but set dry_run property.

R=machenbach@chromium.org,sergiyb@chromium.org
BUG=601128,594127,591030

Review-Url: https://codereview.chromium.org/1926663002

git-svn-id: fd409f4bdeea2bb50a5d34bb4d4bfc2046a5a3dd@300265 0039d316-1c4b-4281-b951-d872f2087c98

primiano/depot_tools,primiano/depot_tools,CoherentLabs/depot_tools,primiano/depot_tools,CoherentLabs/depot_tools