Label: Use GetPreferredSize(SizeBounds) in /ash/wm

GetPreferredSize() considers the currently available layout space to be
unlimited. However, for some views (eg: label), their preferred size is
strongly related to the currently available space, which leads us to
need to use GetPreferredSize() + GeHeightForWidth(), which results in
two layout calculations. It also resulted in some errors that could not
be repaired, eg: 41295639.

In the end we chose to use GetPreferredSize(SizeBounds) to solve these
problems. There is also the concept of constraint space in Blink
LayoutNG.

This CL was uploaded by git cl split.

R=dandersson@chromium.org, minch@chromium.org

Bug: 40232718
Change-Id: I9a3b484e03140b27ce2d903557fc59b8068fc3e2
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/5427639


Auto-Submit: Weidong Liu <weidongliu@chromium.org>
Reviewed-by: Min Chen <minch@chromium.org>
Commit-Queue: Min Chen <minch@chromium.org>
Cr-Commit-Position: refs/heads/main@{#1283274}