Set SelfNeedsLayoutForAvailableSpace when the height changes

This should be helpful for LayoutNG performance with a legacy layout parent.

Change-Id: Idbc4c37a35f0715f07368e912dba157ee79ba4c8
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1536146
Reviewed-by: Morten Stenshorne <mstensho@chromium.org>
Reviewed-by: Emil A Eklund <eae@chromium.org>
Commit-Queue: Christian Biesinger <cbiesinger@chromium.org>
Cr-Commit-Position: refs/heads/master@{#645479}