GitLab

Only one CI/try builder pair: ios-simulator-code-coverage

Schedule of migration:
https://docs.google.com/spreadsheets/d/1TZhpasm6iceYm7zqkyEtZ1wn9ZcpREfH4LV4cusICJA/edit#gid=0

Bug: 950413
Change-Id: I64f527f57be72e60a85a53d7ae59d3b0b33c98c3
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2119293
Commit-Queue: Simon Que <sque@chromium.org>
Reviewed-by: Takuto Ikuta <tikuta@chromium.org>
Reviewed-by: John Budorick <jbudorick@chromium.org>
Cr-Commit-Position: refs/heads/master@{#754772}