Make all PaintLayers that scroll overflow self-painting.

third_party/WebKit/LayoutTests/FlagExpectations/enable-slimming-paint-v2

 # Expectations for slimming paint v2
 # See: https://docs.google.com/document/d/1QCM912Dr6u38DqyQqd7pxQxDy8FFOoWMMDq7uAXqKdA/view
 # We are focused on fast/, compositing/, and svg/ with all other directories skipped (for now).
 Bug(none) accessibility/ [ Skip ]
 Bug(none) app_banner/ [ Skip ]
 Bug(none) battery-status/ [ Skip ]
 Bug(none) bindings/ [ Skip ]
 Bug(none) bluetooth/ [ Skip ]
 Bug(none) canvas/ [ Skip ]
 Bug(none) crypto/ [ Skip ]
@@ skipping 93 matching lines @@
 Bug(none) virtual/wheelscrolllatching/ [ Skip ]
 Bug(none) virtual/windows-directwrite/ [ Skip ]
 Bug(none) virtual/without-smil/ [ Skip ]
 
 Bug(none) paint/transparency/compositing-alpha-fold-crash.html [ Failure ]
 Bug(none) paint/invalidation/table/row-change-background-rowspan-cell.html [ Failure ]
 Bug(none) paint/invalidation/clip-flex-text.html [ Pass Failure ]
 Bug(none) virtual/new-remote-playback-pipeline/media/controls/video-controls-with-cast-rendering.html [ Failure ]
 Bug(none) virtual/new-remote-playback-pipeline/media/controls/video-overlay-cast-dark-rendering.html [ Failure ]
 Bug(none) virtual/new-remote-playback-pipeline/media/controls/video-overlay-cast-light-rendering.html [ Failure ]
+Bug(none) virtual/new-remote-playback-pipeline/media/controls/controls-cast-do-not-fade-out.html [ Failure ]

[Xianzhu, 2017/06/03 04:10:20]

I saw it crashed with and without patch, so we should expect [ Crash ] instead
of [ Failure ].

It's seems unrelated to this CL. We should update this in another patch. I can
update this in my spv2 rebaseline patch.

[chrishtr, 2017/06/05 17:23:07]

I can remove it or land in a separate patch.

[Xianzhu, 2017/06/05 17:27:51]

Please remove it. As it fails with or without patch, it won't block CQ.

[chrishtr, 2017/06/05 18:06:45]

Done.

+
 Bug(none) svg/foreignObject/overflow-clip-in-hidden-container-crash.html [ Crash ]
 Bug(none) images/rendering-broken-0px-images.html [ Failure ]
 Bug(none) images/rendering-broken-0px-images-quirk.html [ Failure ]
 Bug(none) paint/invalidation/overflow-hidden-to-visible.html [ Pass Failure ]
 Bug(none) compositing/3d-cube.html [ Failure ]
 Bug(none) compositing/absolute-inside-out-of-view-fixed.html [ Failure ]
 Bug(none) compositing/animation/hidden-composited.html [ Failure ]
 Bug(none) compositing/backface-visibility/backface-visibility-image.html [ Failure ]
 Bug(none) compositing/backface-visibility/backface-visibility-webgl.html [ Failure ]
 Bug(none) compositing/canvas-with-object-fit-contain-in-composited-layer.html [ Failure ]
@@ skipping 1992 matching lines @@
 crbug.com/706066 svg/as-image/image-respects-pageScaleFactor.html [ Crash Timeout ]
 crbug.com/706066 paint/invalidation/fixed-right-bottom-in-page-scale.html [ Crash ]
 crbug.com/706066 paint/invalidation/fixed-in-page-scale.html [ Crash ]
 crbug.com/706066 paint/invalidation/background-scaling.html [ Crash ]
 crbug.com/706066 paint/invalidation/scale-page-shrink.html [ Crash ]
 crbug.com/706066 paint/invalidation/compositing/page-scale-repaint.html [ Crash ]
 crbug.com/706066 paint/invalidation/relayout-fixed-position-after-scale.html [ Crash ]
 
 Bug(none) paint/pagination/composited-paginated-outlined-box.html [ Failure ]
 Bug(none) paint/pagination/composited-paginated-inline.html [ Failure ]
+