commit 6b83939340b453504f8d5d38ba774d4f07324dd5
author flackr <flackr@chromium.org> Tue Jul 05 22:04:11 2016
committer Commit bot <commit-bot@chromium.org> Tue Jul 05 22:06:26 2016
tree 96ef9200d0dfaa5a1b832202a16e8a3b536c6ad7
parent 033d839437b34f4de578479aea8c4a2669a91945

Fix sticky constraints and update sticky layer positions recursively after scroll.

Sticky position constraints were being computed relative to the current scroll position which led to incorrect constraints when updated after the ancestor scroller had been scrolled. This fixes that as well as updating descendant layer positions after scroll to fix 606732.

BUG=606732
TEST=fast/css/sticky/sticky-clip-rel-child.html

Review-Url: https://codereview.chromium.org/2020103002
Cr-Commit-Position: refs/heads/master@{#403828}