GitLab

Merge the screenshot descriptions produced by the instrumentation tests
into a single description. If the tests are run locally print a link
to this description, if the are run remotely add a link to the
description to the json file produced by test_results_presentation

Change-Id: Ia9dd491460633148283bed66949cec47a410dea3
Reviewed-on: https://chromium-review.googlesource.com/952972Reviewed-by: Bernhard Bauer <bauerb@chromium.org>
Reviewed-by: John Budorick <jbudorick@chromium.org>
Commit-Queue: Anthony Berent <aberent@chromium.org>
Cr-Commit-Position: refs/heads/master@{#543393}