This change includes the following commits from the infra/infra
repository:

97ee9cecaa Pinpoint: introduce fakelegacy-based smoke test. (chowski@google.com)
7f5c67efcb pinpoint: Translate ExperimentCommit properly (dberris@google.com)
6c32245733 Pinpoint cli: add actionable error when GCS credentials fail. (chowski@google.com)
5ed9722479 pinpoint fakelegacy: support /api/new endpoint. (chowski@google.com)
9d26e75b86 pinpoint: add copyright heading to files which are missing it. (chowski@google.com)
2c07962627 Pinpoint server: use the new ShouldBeStatusError assertion more. (chowski@google.com)
830e31f6b1 Pinpoint server: add unit test for ScheduleJob. (chowski@google.com)
c27f979330 Pinpoint cli: infer some flag defaults from `git cl issue`. (chowski@google.com)
ed69e2428f Pinpoint fakelegacy: support ListJobs. (chowski@google.com)
5f0e1e9a35 Pinpoint: first stab at a fake Legacy Pinpoint implementation. (chowski@google.com)
3aae5c2e6b pinpoint: Support wait+download for experiments (dberris@google.com)
6a634f7926 Replace 'master' with 'main' in test data. (chowski@chromium.org)
81ccbd091d Pinpoint server: support ListJobs' filter argument. (chowski@chromium.org)
575bd02e5a pinpoint: Update docs, support non-chromium/src (dberris@google.com)
e53451b2ca pinpoint server: support Cancel RPC. (chowski@chromium.org)
cb65ecf501 pinpoint: Reduce duplication in server_test (chowski@chromium.org)
e91e4e899d pinpoint: Support optional patchset for CLs (dberris@google.com)

R=dpranke@google.com

Bug: chromium:1175615
Change-Id: I4ac6407d822bf1905cbba02d29649ac4e400aecb
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/2807336
Auto-Submit: Dean Berris <dberris@chromium.org>
Commit-Queue: Dirk Pranke <dpranke@google.com>
Reviewed-by: Dirk Pranke <dpranke@google.com>