Recalculate intrinsic widths in the old containing block chain when going out of flow.

Recalculate intrinsic widths in the old containing block chain when going out of flow.

When an object goes out of flow, it no longer contributes to the intrinisic
widths of its parents. We need to mark them for recalculation while we can
still walk that ancestry chain, i.e. before applying the style change.

BUG=521819
R=esprehn@chromium.org,leviw@chromium.org

Committed: https://src.chromium.org/viewvc/blink?view=rev&revision=200836

[mstensho (USE GERRIT), 2015-08-18 11:36:03]

mstensho@opera.com changed reviewers:
+ robhogan@gmail.com

[mstensho (USE GERRIT), 2015-08-18 11:36:04]

fast/layers/scroll-descendant-with-cached-cliprects.html depended on this bug
(failure to recalculate intrinsic widths when a child is going out of flow) in
order to pass. I set a fixed width on the float in the test, hopefully without
making the test less useful. Adding robhogan (the author of that test).

[eae, 2015-08-19 15:40:17]

eae@chromium.org changed reviewers:
+ eae@chromium.org

[eae, 2015-08-19 15:40:18]

LGTM

[esprehn, 2015-08-19 16:50:54]

The CQ bit was checked by esprehn@chromium.org

[esprehn, 2015-08-19 16:50:55]

lgtm

[commit-bot: I haz the power, 2015-08-19 16:51:05]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1294063005/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1294063005/20001

[commit-bot: I haz the power, 2015-08-19 18:05:14]

Committed patchset #2 (id:20001) as
https://src.chromium.org/viewvc/blink?view=rev&revision=200836