tree 96f9533e495ed5f241c59cc5f43fc666b50374b6
parent 910c0aa1384ee3122a4d3929ca3b94943a3dc539
author chaviw <chaviw@google.com> 1540230038 -0700
committer chaviw <chaviw@google.com> 1543270851 -0800

Mark children as detached instead of actually detaching them.

When detachChildren is called, mark children as detached instead of removing
them from the client. This is so the children can be re-attached again when
they're reparented. Check if layer is detached before copying currentState
to drawingState so detached layers aren't updated. Also check if layer
is detached before removing the layer since they should no longer be
reachable if they're detached.

Test: DetachChildrenThenAttach
Bug: 111297488
Change-Id: I31b9eb1398f02e9d68dd3f7a1f231e1cef9fb0f8