Android: Attach hidden layer for CopyFromCompositingSurface()

Android: Attach hidden layer for CopyFromCompositingSurface()

When the RenderWidgetHostView becomes invisible we might tear down
the layer, which removes the impl layer from the impl layer,
which will cause the Surface not to be added as a dependant Surface
of the root Surface.

Make sure readbacks actually complete (as long as the display is
drawing) by attaching a hidden layer for the readback Surface.

BUG=636628, 574537
TBR=dtrainor@chromium.org

Review-Url: https://codereview.chromium.org/2243663002
Cr-Commit-Position: refs/heads/master@{#411502}
(cherry picked from commit 02d8a97db2cf9fdca8042ce72416db6b5fc2abbc)

Committed: https://chromium.googlesource.com/chromium/src/+/d6837f6960cc65cdf821f1985f68e01240187724

[no sievers, 2016-08-15 18:41:25]

Description was changed from

==========
Android: Attach hidden layer for CopyFromCompositingSurface()

When the RenderWidgetHostView becomes invisible we might tear down
the layer, which removes the impl layer from the impl layer,
which will cause the Surface not to be added as a dependant Surface
of the root Surface.

Make sure readbacks actually complete (as long as the display is
drawing) by attaching a hidden layer for the readback Surface.

BUG=636628
TBR=dtrainor@chromium.org

Review-Url: https://codereview.chromium.org/2243663002
Cr-Commit-Position: refs/heads/master@{#411502}
(cherry picked from commit 02d8a97db2cf9fdca8042ce72416db6b5fc2abbc)
==========

to

==========
Android: Attach hidden layer for CopyFromCompositingSurface()

When the RenderWidgetHostView becomes invisible we might tear down
the layer, which removes the impl layer from the impl layer,
which will cause the Surface not to be added as a dependant Surface
of the root Surface.

Make sure readbacks actually complete (as long as the display is
drawing) by attaching a hidden layer for the readback Surface.

BUG=636628,574537
TBR=dtrainor@chromium.org

Review-Url: https://codereview.chromium.org/2243663002
Cr-Commit-Position: refs/heads/master@{#411502}
(cherry picked from commit 02d8a97db2cf9fdca8042ce72416db6b5fc2abbc)
==========

[no sievers, 2016-08-15 18:48:19]

Description was changed from

==========
Android: Attach hidden layer for CopyFromCompositingSurface()

When the RenderWidgetHostView becomes invisible we might tear down
the layer, which removes the impl layer from the impl layer,
which will cause the Surface not to be added as a dependant Surface
of the root Surface.

Make sure readbacks actually complete (as long as the display is
drawing) by attaching a hidden layer for the readback Surface.

BUG=636628,574537
TBR=dtrainor@chromium.org

Review-Url: https://codereview.chromium.org/2243663002
Cr-Commit-Position: refs/heads/master@{#411502}
(cherry picked from commit 02d8a97db2cf9fdca8042ce72416db6b5fc2abbc)
==========

to

==========
Android: Attach hidden layer for CopyFromCompositingSurface()

When the RenderWidgetHostView becomes invisible we might tear down
the layer, which removes the impl layer from the impl layer,
which will cause the Surface not to be added as a dependant Surface
of the root Surface.

Make sure readbacks actually complete (as long as the display is
drawing) by attaching a hidden layer for the readback Surface.

BUG=636628,574537
TBR=dtrainor@chromium.org

Review-Url: https://codereview.chromium.org/2243663002
Cr-Commit-Position: refs/heads/master@{#411502}
(cherry picked from commit 02d8a97db2cf9fdca8042ce72416db6b5fc2abbc)

Committed:
https://chromium.googlesource.com/chromium/src/+/d6837f6960cc65cdf821f1985f68...
==========

[no sievers, 2016-08-15 18:48:20]

Committed patchset #3 (id:40001) manually as
d6837f6960cc65cdf821f1985f68e01240187724 (presubmit successful).