GitLab

This CL removes calls to base::AdaptCallbackForRepeating when the
returned base::RepeatingCallback is immediately converted
to a base::OnceCallback.
It also fixes a bug in //tools/clang/base_bind_rewriters which
caused commas to be wrongfully removed if base::AdaptCallbackForRepeating
is not the first parameter.

Change-Id: Ic90bfcef4496fa0a22a083e2c8506066cffd5b95
Reviewed-on: https://chromium-review.googlesource.com/1123819
Commit-Queue: Yannic Bonenberger <contact@yannic-bonenberger.com>
Reviewed-by: Avi Drissman <avi@chromium.org>
Reviewed-by: Daniel Cheng <dcheng@chromium.org>
Cr-Commit-Position: refs/heads/master@{#573490}