After the problem fixed by [1], it seems wiser to only check that
`include_rules` contains all the top level directories and delegate the
action of adding a rule for .cc file to the first user of an header
from a new root level directory.
This should make the presubmit check more actionable (in [1] for example
the solution was to *not* add "+ios" but to consider ios/ as a non
WebRTC directory).
[1] - https://webrtc-review.googlesource.com/c/107707
Bug: webrtc:9887, webrtc:9924
Change-Id: Ic85e2153a2b83a4874c8faec3c5d1a8c61fe6faf
Reviewed-on: https://webrtc-review.googlesource.com/c/107731
Commit-Queue: Mirko Bonadei <mbonadei@webrtc.org>
Reviewed-by: Karl Wiberg <kwiberg@webrtc.org>
Cr-Commit-Position: refs/heads/master@{#25386}
904903705f