[CSS Grid Layout] min-content row does not always shrink

[CSS Grid Layout] min-content row does not always shrink
https://bugs.webkit.org/show_bug.cgi?id=144581

Reviewed by Zalan Bujtas.

Source/WebCore:

Grid items height must be recomputed whenever the grid tracks
change if the items had been previously stretched. In those
cases we have to clear the override height and layout the item
with the new row size.

Tests: fast/css-grid-layout/min-content-row-must-shrink-when-column-grows.html
       fast/css-grid-layout/relayout-indefinite-heights.html

* rendering/RenderGrid.cpp:
(WebCore::RenderGrid::logicalContentHeightForChild):

LayoutTests:

Based on Blink's r191001 by <jfernandez@igalia.com>.

* fast/css-grid-layout/min-content-row-must-shrink-when-column-grows-expected.txt: Added.
* fast/css-grid-layout/min-content-row-must-shrink-when-column-grows.html: Added.
* fast/css-grid-layout/relayout-indefinite-heights-expected.txt: Added.
* fast/css-grid-layout/relayout-indefinite-heights.html: Added.

git-svn-id: https://svn.webkit.org/repository/webkit/trunk@191879 268f45cc-cd09-0410-ab3c-d52691b4dbfc