GitLab

- added .style.yapf files
- reformat *.py files in third_party/blink/public

Bug: 1051750
Change-Id: Ibf90a409f235cbdd96991c6c67a21cecea5f1547
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2057304Reviewed-by: Kent Tamura <tkent@chromium.org>
Commit-Queue: Kent Tamura <tkent@chromium.org>
Cr-Commit-Position: refs/heads/master@{#743472}