Update test expectations to reflect flakiness of tests, caused by http://src....

webkit/tools/layout_tests/test_expectations.txt

Index: webkit/tools/layout_tests/test_expectations.txt
===================================================================
--- webkit/tools/layout_tests/test_expectations.txt	(revision 25465)
+++ webkit/tools/layout_tests/test_expectations.txt	(working copy)
@@ -1502,14 +1502,15 @@
 BUG8630 WIN LINUX : LayoutTests/fast/table/empty-section-crash.html = FAIL
 BUG8630 WIN LINUX : LayoutTests/fast/text/font-initial.html = FAIL
 BUG8630 WIN LINUX : pending/fast/repaint/bugzilla-6473.html = FAIL
-// These started failing after initial implementation of .display() landed.
-BUG8630 LINUX DEBUG : LayoutTests/svg/custom/mask-inside-defs.svg = FAIL
-BUG8630 LINUX DEBUG : LayoutTests/svg/custom/stroked-pattern.svg = FAIL
-BUG8630 LINUX : LayoutTests/svg/custom/use-detach.svg = FAIL
-BUG8630 LINUX : LayoutTests/svg/batik/filters/feTile.svg = FAIL
-BUG8630 LINUX : LayoutTests/fast/backgrounds/001.html = CRASH
-BUG8630 LINUX : LayoutTests/fast/forms/form-added-to-table.html = FAIL
-BUG8630 LINUX : LayoutTests/fast/forms/button-align.html = FAIL
+// These started flaking after initial implementation of .display() landed.
+BUG8630 LINUX DEBUG : LayoutTests/svg/custom/mask-inside-defs.svg = FAIL PASS
+BUG8630 LINUX DEBUG : LayoutTests/svg/custom/stroked-pattern.svg = FAIL PASS
+BUG8630 LINUX : LayoutTests/svg/custom/use-detach.svg = FAIL PASS
+BUG8630 LINUX : LayoutTests/svg/batik/filters/feTile.svg = FAIL PASS
+BUG8630 LINUX : LayoutTests/fast/backgrounds/001.html = CRASH PASS
+BUG8630 LINUX : LayoutTests/fast/forms/form-added-to-table.html = FAIL PASS
+BUG8630 LINUX : LayoutTests/fast/forms/button-align.html = FAIL PASS
+BUG8630 LINUX : LayoutTests/fast/forms/slider-thumb-stylability.html = FAIL PASS
 
 // Linux pixeltest failure: Failing to rotate the form control
 BUG10390 LINUX : LayoutTests/fast/transforms/transformed-focused-text-input.html = FAIL