tree 6ccef41abfe0134c1839cf096f50c7bb46b0c63d
parent b2414afea74458de2281625eb4774e72090aca9b
author vollick <vollick@chromium.org> 1410640604 -0700
committer Bo Liu <boliu@google.com> 1411440998 -0700

Cherry-pick: Fix RemoveFromScrollTree and RemoveFromClipTree

Clean cherry-pick of chromium
crrev.com/66133e86b6d79534605539aa684a248e6b6205bf

BUG: 17612259

Original description:

These functions should set needs commit, but didn't. This lead to stale
pointers in the impl tree.

Review URL: https://codereview.chromium.org/572483002

Change-Id: I59ba963f2ad44aa6f64366ca30c7a64a97570fb3
Cr-Commit-Position: refs/heads/master@{#294749}