SPv2: Use GeometryMapper to implement PaintLayerClipper.

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).
 
 accessibility/ [ Skip ]
 animations/ [ Skip ]
 app_banner/ [ Skip ]
 battery-status/ [ Skip ]
 bindings/ [ Skip ]
 bluetooth/ [ Skip ]
@@ skipping 2139 matching lines @@
 crbug.com/637316 svg/text/text-outline-rgba.html [ Failure ]
 crbug.com/637316 svg/text/text-path-middle-align.svg [ Failure ]
 
 fast/scrolling/overflow-scrollability.html [ Failure ]
 fast/scrolling/scrollbar-prevent-default.html [ Failure ]
 compositing/lots-of-img-layers-with-opacity.html [ Failure ]
 compositing/lots-of-img-layers.html [ Failure ]
 
 fast/events/overflow-composited-scroll-fake-mouse-move.html [ Skip ]
 
-# These timeout due to a JS errr parsing layerTreeAsText
-crbug.com/647831 compositing/overflow/ancestor-with-clip-path.html [ Failure ]
-crbug.com/647831 compositing/overflow/opt-in-if-composited.html [ Failure ]
-crbug.com/647831 compositing/overflow/descendant-with-clip-path.html [ Failure ]
-crbug.com/647831 compositing/overflow/scroller-with-border-radius.html [ Failure ]
+#The following tests for crbug.com/593596 are actually SPv2 progressions.
+# Small pixel differences, needs rebaseline
+crbug.com/593596 compositing/geometry/layer-due-to-layer-children-deep.html [ Failure ]
+# These fail because GeometryMapper applies a control clip for the input element; SPv1 does not.
+crbug.com/593596 fast/css/input-search-padding.html [ Failure ]
+crbug.com/593596 fast/forms/search/search-vertical-alignment.html [ Failure ]
+fast/forms/search/searchfield-heights.html [ Failure ]
+fast/forms/search/searchfield-heights.html [ Failure ]
+fast/forms/text/text-font-height-mismatch.html [ Failure ]
+fast/forms/text/textfield-overflow-by-value-update.html [ Failure ]
+fast/replaced/width100percent-searchfield.html [ Failure ]
+# SPv2 correctly positions a background clip that includes the transformed size of div #two.
+# SPv1 does not understand how to apply transforms properly in PaintLayerClipper (the altter isue is
+# also tracked in crbug.com/548184).
+fast/transforms/transform-overflow.html [ Failure ]