GitLab

LayerTreeFrameSinkHolder doesn't handle losing LayerTreeFrameSink for
all situations today. LayerTreeFrameSinkHolder assumes that the only
time the LayerTreeFrameSink is lost is during destruction which is
*mostly* true without OOP-D.

With OOP-D the LayerTreeFrameSink holds a message pipe to the GPU
process, so anytime the GPU process crashes the LayerTreeFrameSink will
be lost and needs to be recreated.

Have SurfaceTreeHost replace the LayerTreeFrameSinkHolder and
LayerTreeFrameSink. Also change WindowPortLocal assumption that
LayerTreeFrameSinks never get recreated for a window.

Bug: 954151
Change-Id: I30a76d615b187086fcecfaf34c9c36e4d3424d4d
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1594478Reviewed-by: Sadrul Chowdhury <sadrul@chromium.org>
Reviewed-by: Daniele Castagna <dcastagna@chromium.org>
Commit-Queue: kylechar <kylechar@chromium.org>
Cr-Commit-Position: refs/heads/master@{#657249}