Mark compositing/masks/mask-with-added-filters.html as Fail

This is to remove the last usage of NeedsManualRebaseline

Cq-Include-Trybots: luci.chromium.try:linux_layout_tests_slimming_paint_v2;master.tryserver.blink:linux_trusty_blink_rel
Change-Id: I1bc7e63d41acf1f7813d8ac5fba4ae29f3b6691b

BUG: 865039, 621126
Change-Id: I1bc7e63d41acf1f7813d8ac5fba4ae29f3b6691b
Reviewed-on: https://chromium-review.googlesource.com/1142194
Commit-Queue: Ned Nguyen <nednguyen@google.com>
Commit-Queue: Peter Mayo <petermayo@chromium.org>
Reviewed-by: Peter Mayo <petermayo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#576151}

third_party/WebKit/LayoutTests/FlagExpectations/enable-blink-gen-property-trees

@@ -138,7 +138,8 @@ Bug(none) virtual/threaded/ [ Skip ]
 # These tests failed in normal mode but are fixed with BlinkGenPropertyTrees.
 Bug(none) compositing/overflow/clip-escaping-reverse-order-should-not-crash.html [ Pass ]
 Bug(none) compositing/overflow/composited-scroll-with-fractional-translation.html [ Pass ]
-Bug(none) compositing/masks/mask-with-added-filters.html [ NeedsManualRebaseline ]
+# This test can be manually rebaselined.
+Bug(none) compositing/masks/mask-with-added-filters.html [ Failure ]
 
 # These animation/transition tests should pass.
 Bug(none) animations/ [ Pass ]