[SPv2] Add CSS mask support

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

Index: third_party/WebKit/LayoutTests/FlagExpectations/enable-slimming-paint-v2
diff --git a/third_party/WebKit/LayoutTests/FlagExpectations/enable-slimming-paint-v2 b/third_party/WebKit/LayoutTests/FlagExpectations/enable-slimming-paint-v2
index 436ce36eced442eb8ec73b9c0b88eed7949ecae2..03643fdccdce72b392b9c1829651762118b098a6 100644
--- a/third_party/WebKit/LayoutTests/FlagExpectations/enable-slimming-paint-v2
+++ b/third_party/WebKit/LayoutTests/FlagExpectations/enable-slimming-paint-v2
@@ -305,12 +305,6 @@ Bug(none) compositing/layer-creation/translatez-added.html [ Failure ]
 Bug(none) compositing/layer-creation/translatez-overlap.html [ Failure ]
 Bug(none) compositing/layers-inside-overflow-scroll.html [ Failure ]
 Bug(none) compositing/layout-width-change.html [ Failure ]
-Bug(none) compositing/masks/direct-image-mask.html [ Failure ]
-Bug(none) compositing/masks/mask-layer-size.html [ Failure ]
-Bug(none) compositing/masks/mask-of-clipped-layer.html [ Failure ]
-Bug(none) compositing/masks/masked-ancestor.html [ Failure ]
-Bug(none) compositing/masks/multiple-masks.html [ Failure ]
-Bug(none) compositing/masks/simple-composited-mask.html [ Failure ]
 Bug(none) compositing/overflow/accelerated-overflow-scroll-should-not-affect-perspective.html [ Failure ]
 Bug(none) compositing/overflow/accelerated-scrolling-with-clip-path-text.html [ Failure ]
 Bug(none) compositing/overflow/accelerated-scrolling-with-clip-path.html [ Failure ]
@@ -460,11 +454,8 @@ Bug(none) compositing/will-change/composited-layers.html [ Failure ]
 Bug(none) fast/backgrounds/animated-svg-as-mask.html [ Failure ]
 Bug(none) fast/backgrounds/background-inherit-color-bug.html [ Failure ]
 Bug(none) fast/backgrounds/background-leakage-transforms.html [ Failure ]
-Bug(none) fast/backgrounds/mask-box-image-zoomed.html [ Failure ]
 Bug(none) fast/backgrounds/mask-box-image.html [ Failure ]
-Bug(none) fast/backgrounds/mask-composite.html [ Failure ]
 Bug(none) fast/backgrounds/opacity-on-document-element.html [ Failure ]
-Bug(none) fast/backgrounds/repeat/mask-negative-offset-repeat.html [ Failure ]
 Bug(none) fast/backgrounds/svg-as-mask.html [ Failure ]
 Bug(none) fast/backgrounds/transformed-body-background.html [ Failure ]
 Bug(none) fast/backgrounds/transformed-body-html-background.html [ Failure ]
@@ -553,7 +544,6 @@ Bug(none) fast/css/bidi-override-in-anonymous-block.html [ Failure ]
 Bug(none) fast/css/border-height.html [ Failure ]
 Bug(none) fast/css/color-correction-backgrounds-and-text.html [ Failure ]
 Bug(none) fast/css/color-correction-on-background-image.html [ Failure ]
-Bug(none) fast/css/empty-webkit-mask-crash.html [ Failure ]
 Bug(none) fast/css/first-child-pseudo-class.html [ Failure ]
 Bug(none) fast/css/first-of-type-pseudo-class.html [ Failure ]
 Bug(none) fast/css/hsl-color.html [ Failure ]
@@ -632,7 +622,6 @@ Bug(none) fast/forms/text/input-text-scroll-left-on-blur.html [ Failure ]
 Bug(none) fast/forms/textarea/basic-textareas-quirks.html [ Failure ]
 Bug(none) fast/forms/textarea/basic-textareas.html [ Failure ]
 Bug(none) fast/forms/textarea/textarea-scrolled-focus-ring.html [ Failure ]
-Bug(none) fast/forms/textarea/textarea-scrolled-mask.html [ Failure ]
 Bug(none) fast/forms/textarea/textarea-scrolled-type.html [ Failure ]
 Bug(none) fast/forms/textarea/textAreaLineHeight.html [ Failure ]
 Bug(none) fast/frames/frame-set-rotation-hit.html [ Crash Timeout ]
@@ -670,7 +659,6 @@ Bug(none) images/color-profile-mask-image-svg.html [ Failure ]
 Bug(none) images/color-profile-reflection.html [ Crash Failure ]
 Bug(none) images/color-profile-svg-foreign-object.html [ Failure ]
 Bug(none) images/content-url-image-with-alt-text-dynamic-2.html [ Pass Failure ]
-Bug(none) images/mask-box-image-crash.html [ Failure ]
 Bug(none) fast/inline/inline-borders-with-bidi-override.html [ Failure ]
 Bug(none) fast/inline/inline-continuation-borders.html [ Failure ]
 Bug(none) fast/layers/normal-flow-hit-test.html [ Crash Failure ]
@@ -1537,7 +1525,6 @@ Bug(none) css3/blending/background-blend-mode-overlapping-accelerated-elements.h
 Bug(none) css3/blending/mix-blend-mode-simple-text.html [ Failure ]
 Bug(none) css3/blending/mix-blend-mode-simple.html [ Failure ]
 Bug(none) css3/blending/effect-background-blend-mode-stacking.html [ Failure ]
-Bug(none) css3/blending/mix-blend-mode-with-masking.html [ Failure ]
 Bug(none) css3/blending/svg-blend-layer-mask.html [ Failure ]
 Bug(none) css3/blending/svg-isolation-embed-isolate.html [ Failure ]
 Bug(none) css3/blending/svg-isolation-iframe-isolate.html [ Failure ]
@@ -1589,6 +1576,15 @@ crbug.com/589265 svg/dynamic-updates/SVGFEBlendElement-svgdom-in2-prop.html [ Fa
 crbug.com/589265 svg/dynamic-updates/SVGFEBlendElement-svgdom-mode-prop.html [ Failure ]
 crbug.com/589265 svg/foreignObject/filter.html [ Failure ]
 
+# Failures due to SPv2 using SkBlendMode::kDstIn to implement masks.
+# Some rounding differences is expected but none of them should be apparent.
+# Text failures are also expected because of different layer structure.
+crbug.com/589265 compositing/masks/direct-image-mask.html [ Failure ]
+crbug.com/589265 compositing/masks/mask-layer-size.html [ Failure ]
+crbug.com/589265 compositing/masks/masked-ancestor.html [ Failure ]
+crbug.com/589265 compositing/masks/multiple-masks.html [ Failure ]
+crbug.com/589265 compositing/masks/simple-composited-mask.html [ Failure ]
+
 # Interesting one. The expectation contains an artifact due to incorrect
 # Skia peephole optimization.
 crbug.com/675805 fast/text/complex-text-opacity.html [ Failure ]