tree 3fbffc3056ceac9214aa8bfeed8cce8f6d9446bc
parent 128fcea1c6f8b5f66a5d88a80789e65aac798416
author Mathias Agopian <mathias@google.com> 1364952632 -0700
committer Mathias Agopian <mathias@google.com> 1364952632 -0700

latch transparent region hint only when we get a new frame

since the transparent region hint really depends on the
content of the window containing the SurfaceView
(it's calculated by the view hierarchy based on
overlapping views), it makes sense to latch it only when
the content of the window (the app) changes.

This should help fixing drawing artifacts when changing the
layout of a window containing a SurfaceView.

Bug: 8511430
Change-Id: Ic3aa668495293cb4d82a2cd7dcf3b6a337287678