tree a20b0c7ce6c8ff60502a1df110349da1b831a527
parent 233ac731b66da49e2f6611ed8c4ffcdcf893066b
author Michael Lentine <mlentine@google.com> 1447971786 -0800
committer Jesse Hall <jessehall@google.com> 1453758571 -0800

Don't remove elements while iterating through active_layers.

Change-Id: I595e51aea635dad13b6e919dee2229defc4da55a
(cherry picked from commit b735b6d52dad4d72e16968aa66a8282df2c733ea)