Enable skia asserts. They were disabled some time ago due to...

webkit/tools/layout_tests/test_expectations.txt

Index: webkit/tools/layout_tests/test_expectations.txt
===================================================================
--- webkit/tools/layout_tests/test_expectations.txt	(revision 22915)
+++ webkit/tools/layout_tests/test_expectations.txt	(working copy)
@@ -2813,7 +2813,7 @@
 
 // Flaky.  Timing?
 BUG18584 : LayoutTests/animations/change-one-anim.html = FAIL PASS
-BUG18584 WIN : LayoutTests/animations/play-state.html = FAIL PASS
+BUG18584 LINUX WIN : LayoutTests/animations/play-state.html = FAIL PASS
 BUG18584 : LayoutTests/transitions/shorthand-transitions.html = FAIL PASS
 
 // Flaky crashes
@@ -2836,3 +2836,11 @@
 // Test failures/flakiness from WebKit merge 46850 to 46894
 BUG18784 LINUX : LayoutTests/fast/overflow/overflow-focus-ring.html = CRASH PASS
 BUG18784 LINUX : LayoutTests/fast/text/drawBidiText.html = FAIL PASS
+
+// Test failures caused by re-enabling skia asserts.
+BUG18896 WIN DEBUG : LayoutTests/fast/backgrounds/svg-as-background-5.html = FAIL
+BUG18896 WIN LINUX DEBUG : LayoutTests/fast/canvas/canvas-with-incorrect-args.html = FAIL
+BUG18896 WIN LINUX DEBUG : LayoutTests/svg/batik/paints/gradientLimit.svg = FAIL
+BUG18896 WIN DEBUG : LayoutTests/svg/carto.net/window.svg = FAIL
+BUG18896 LINUX DEBUG : LayoutTests/svg/dynamic-updates/SVGClipPathElement-dom-clipPathUnits-attr.html = FAIL
+BUG18896 LINUX DEBUG : LayoutTests/svg/dynamic-updates/SVGClipPathElement-svgdom-clipPathUnits-prop.html = FAIL