GitLab

Replace usages of java_files with sources in above directory's gn files,
and automatically format.

Bug: 1035074
Change-Id: I0599344d6f00b9a2668dc4fc8cb3b8acab50c819
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1977195Reviewed-by: Ken Rockot <rockot@google.com>
Commit-Queue: Natalie Chouinard <chouinard@chromium.org>
Cr-Commit-Position: refs/heads/master@{#726653}