minimize state changes to avoid blank views
Disable 2-pane layout transitions for now. Some devices
sometimes don't terminate the transition, which prevents
layouts from happening.
Refactor actionbar's menu prep to avoid unnecessary changes to
actionbar view state. Frequent changes induced actionbar's
internal Spinner to sometimes do layout during a layout,
orphaning view subtrees and causing blank views.
Now that the known root causes are fixed, disable the original
workaround so new issues can surface and be fixed sooner.
Remove an unnecessary menu invalidate in AAC.
Remove unnecessary view containers in 2-pane layout.
Bug: 6946182
Change-Id: I8334a3846996ca06c0da56f1c1a33089a2fca3de
9 files changed