GitLab

R=dbeam@chromium.org
BUG=393873
TEST=GYP_GENERATORS=ninja gyp --depth . chrome/browser/resources/options/compiled_resources.gyp && ninja -C out/Default | grep ERROR | wc -l

Review URL: https://codereview.chromium.org/559423003

Cr-Commit-Position: refs/heads/master@{#295637}