GitLab

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

TBR=tiborg@chromium.org

Bug: 1035074
Change-Id: Icd179380bcba508e87cad272b6d5aee1f72f56b5
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1980874Reviewed-by: Natalie Chouinard <chouinard@chromium.org>
Reviewed-by: Andrew Grieve <agrieve@chromium.org>
Commit-Queue: Natalie Chouinard <chouinard@chromium.org>
Cr-Commit-Position: refs/heads/master@{#727223}