tree 014f2ea70b9391be7c9e27c36ca7a8b6dca33468
parent 5ff2b3ce04e6530f996e63f78a60fb4e79d5d918
author Hongwei Wang <hwwang@google.com> 1587423750 -0700
committer Hongwei Wang <hwwang@google.com> 1587579240 -0700

Dismiss PiP to split screen if applicable

When splt screen is present, dismiss PiP should result in
split-secondary instead of fullscreen mode.

Fixed also in this CL that when a PiP window transitions to split
screen, a picture-in-picture mode change event should be dispatched to
client.

Video: http://go/recall/-/aaaaaabFQoRHlzixHdtY/dP7U1AtIBXPvLwMp7fFXN

Bug: 154284314
Test: atest PinnedStackTests
Test: manually dismiss PiP when split screen is present
Change-Id: I99b33c1be37d13572e540d7d30b96ed75d00323d