commit 64aa6e1ba1f5c96a4e5dc85a755f709b7c4b0e85
author Vadim Caen <caen@google.com> Wed Jul 24 16:24:33 2019 +0200
committer android-build-team Robot <android-build-team-robot@google.com> Thu Jul 25 04:11:38 2019 +0000
tree 6e660a75da71f15312972e0cf46a0600876570a6
parent 8756e456e67edbf4b604446f1ba2570391bf0204

DO NOT MERGE Do not call drawableChanged pre Q

Some apps rely on not updating the window format when changing the
background of the DecorView. To keep the compatibilty with these app we
add only call DecoreView.drawableChanged() when the window background is
changed on app targetting Q and above.

Test: Manually test by lunching Instagram TV and pressing return twice.
The window should aninate with no flickering.
Bug: 136987724

Change-Id: I3593d30dc6f10519008151974e475f0dad86fc64
(cherry picked from commit 843f9dee8b3fa4ce5ba8981c74cf666c4db712cb)