This is a reland of e1410883

Use vpython to execute git_cl.py, gerrit_util.py and presubmit_support.py on recipes.

Original change's description:
> depot_tools: Add httplib2 to .vpython
>
> Check that things won't break before further changes are made.
>
> Bug: 1002153
> Change-Id: I41866f26334bf9ec2732bc0f25007234a95130e4
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/1854749
> Auto-Submit: Edward Lesmes <ehmaldonado@chromium.org>
> Commit-Queue: Andrii Shyshkalov <tandrii@google.com>
> Reviewed-by: Andrii Shyshkalov <tandrii@google.com>

Bug: 1002153
Recipe-Nontrivial-Roll: build
Recipe-Nontrivial-Roll: chromiumos
Recipe-Nontrivial-Roll: infra
Recipe-Nontrivial-Roll: skia
Recipe-Nontrivial-Roll: build_limited_scripts_slave
Recipe-Nontrivial-Roll: release_scripts
Change-Id: Id94057eae8830dec197257df3ea35c0c4ff946b7
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/tools/depot_tools/+/1856650Reviewed-by: Andrii Shyshkalov <tandrii@google.com>
Commit-Queue: Edward Lesmes <ehmaldonado@chromium.org>