GitLab

The 'Earth' background is the most popular background, based on requests
from the New Tab Page

Bug: 924176
Change-Id: Icf0b4192a19c289788199ee9b616bf8afb2a31b7
Reviewed-on: https://chromium-review.googlesource.com/c/1481991
Commit-Queue: John Lee <johntlee@chromium.org>
Reviewed-by: Hector Carmona <hcarmona@chromium.org>
Reviewed-by: Kyle Milka <kmilka@chromium.org>
Cr-Commit-Position: refs/heads/master@{#634726}