This script runs swarming_xcode_install on the bots. It should be run when
we need to upgrade all the swarming testers. It:
1) Packages two python files into an isolate.
2) Runs the isolate on swarming machines that satisfy certain dimensions.
This version will remove Xcode9-b4 and replace it with Xcode 9.
Bug:
Change-Id: Ia86f4d963b43af175445da428be8920899e7e05e
Reviewed-on: https://chromium-review.googlesource.com/641379
Reviewed-by: Dirk Pranke <dpranke@chromium.org>
Reviewed-by: Erik Chen <erikchen@chromium.org>
Reviewed-by: Sergey Berezin <sergeyberezin@chromium.org>
Commit-Queue: Justin Cohen <justincohen@chromium.org>
Cr-Original-Commit-Position: refs/heads/master@{#502238}
Cr-Mirrored-From: https://chromium.googlesource.com/chromium/src
Cr-Mirrored-Commit: ae7265ca4bbe7bce5d1f13d8856ec06513883813