commit c01760bc132fcc6a8d96b1d567bad36a6614677f
author flackr <flackr@chromium.org> Thu Aug 11 23:36:33 2016
committer Commit bot <commit-bot@chromium.org> Thu Aug 11 23:38:25 2016
tree 431cd91092fb1e5eafa110c85f2ca1a0e4f73edd
parent 9ca5a503b8f28258126226df203bef7fd316dfad

Invalidate scrolling contents layer on background invalidations painted into it.

When we paint backgrounds into the scrolling contents layer we need to invalidate
appropriately when those backgrounds change.

BUG=636437
TEST=compositing/overflow/overflow-scroll-with-local-background-invalidation.html
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_layout_tests_slimming_paint_v2

Review-Url: https://codereview.chromium.org/2235873002
Cr-Commit-Position: refs/heads/master@{#411441}