20 rebaselines for image failures from a manual review of the ToT
bot result at:
https://test-results.appspot.com/data/layout_results/linux_layout_tests_layout_ng/3954/layout-test-results/results.html

TBR=eae@chromium.org
NOTRY=true

Bug: 591099
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_layout_tests_layout_ng
Change-Id: I04454fc301af31a723a93e1fe2ba78a7d920d0aa
Reviewed-on: https://chromium-review.googlesource.com/937742
Commit-Queue: Koji Ishii <kojii@chromium.org>
Reviewed-by: Emil A Eklund <eae@chromium.org>
Reviewed-by: Koji Ishii <kojii@chromium.org>
Cr-Commit-Position: refs/heads/master@{#539234}