[Extensions] Update script_and_capture tests to manifest v2

We should (finally) remove support for manifest v1. One of the last
significant dependencies is that a lot of our tests aren't manifest v2
yet.

This CL updates manifest files under
chrome/test/data/extensions/script_and_capture (which are not usually
named manifest.json). All files updated cleanly.

Bug: 816679
Change-Id: I96cce6762c72eda98148d5aa49a57b2703fe9b63
Reviewed-on: https://chromium-review.googlesource.com/952363
Reviewed-by: Karan Bhatia <karandeepb@chromium.org>
Commit-Queue: Devlin <rdevlin.cronin@chromium.org>
Cr-Commit-Position: refs/heads/master@{#541290}
9 files changed