GitLab

BUG=331829,373148,299841,103304
TEST=ninja -C out/Debug ui_unittests, then verify that
out/Debug/ui_base_unittests is there and runs. Same thing with
ui_unittests
R=sky@chromium.org

Review URL: https://codereview.chromium.org/588963002

Cr-Commit-Position: refs/heads/master@{#296182}