GitLab

ListMarker won't be shown under these two situation:
1. We update marker text in WillCollectInlines(), it won't be called
when ListItem isn't ChildrenInline. Call WillCollectInlines() manually
if ListItem only has block children.
2. If marker isn't the child of LI, both LI and marker_parent won't paint
marker. So make marker as a direct child of LI.

Bug: 715288
Cq-Include-Trybots: master.tryserver.chromium.linux:linux_layout_tests_layout_ng
Change-Id: I994fc9980c73cf00f983142d86b4ba49687d72f6
Reviewed-on: https://chromium-review.googlesource.com/1088333Reviewed-by: Koji Ishii <kojii@chromium.org>
Commit-Queue: cathie chen <cathiechen@tencent.com>
Cr-Commit-Position: refs/heads/master@{#565613}