Not guarding against the possibility of m_fullScreenRootLayer and m_rootLayer being null during an animation request.
<rdar://problem/9283857>
Created attachment 90752 [details] Patch
Comment on attachment 90752 [details] Patch r=me
Committed r84698: <http://trac.webkit.org/changeset/84698>
The commit-queue encountered the following flaky tests while processing attachment 90752 [details]: fast/history/history-subframe-with-name.html bug 51039 (author: mihaip@chromium.org) The commit-queue is continuing to process your patch.