tree b85adc2bf6157491b502a8c8b6c861442048d8b0
parent 6c6c1405a7721697b84404c59ddde085659e70c1
author Ralston Da Silva <ralu@google.com> 1587772438 -0700
committer Ralston Da Silva <ralu@google.com> 1587889294 -0700

Add attach() callback to LayoutNodeWrapper

The LayoutNodeWrapper class has a detach() callback. Add an attach() callback too. This is needed by FocusModifier and KeyInputModifier so that they can keep track of children (add/remove children) using attach and detach.

Fixes: 154962853
Test: Ran demo app locally
Change-Id: I049251f782b5c48eb207309af8705ffd69cb1c94