Disable failing tests.

BUG=867628, 746128
TBR=hubbe@chromium.org

Change-Id: I71f6dba4710bf7c3ffb0f14ed430d6419f59e0ed
Reviewed-on: https://chromium-review.googlesource.com/1167468
Commit-Queue: Avi Drissman <avi@chromium.org>
Reviewed-by: Avi Drissman <avi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#581588}

third_party/WebKit/LayoutTests/TestExpectations

@@ -1727,7 +1727,7 @@ crbug.com/492664 [ Win ] external/wpt/css/css-writing-modes/bidi-plaintext-001.h
 crbug.com/280342 [ Mac Linux Win ] http/tests/media/progress-events-generated-correctly.html [ Failure Pass ]
 
 crbug.com/520736 [ Win7 ] media/W3C/video/networkState/networkState_during_progress.html [ Failure Pass ]
-crbug.com/520736 [ Win7 ] virtual/video-surface-layer/media/W3C/video/networkState/networkState_during_progress.html [ Failure Pass ]
+crbug.com/520736 [ Win7 Mac ] virtual/video-surface-layer/media/W3C/video/networkState/networkState_during_progress.html [ Failure Pass ]
 
 crbug.com/865839 external/wpt/service-workers/service-worker/update-after-navigation-redirect.https.html [ Timeout ]
 
@@ -3976,6 +3976,7 @@ crbug.com/626703 [ Win7 ] external/wpt/domxpath/xml_xpath_runner.html [ Timeout
 
 crbug.com/746128 [ Win7 Debug ] media/controls/video-enter-exit-fullscreen-without-hovering-doesnt-show-controls.html [ Failure ]
 crbug.com/746128 [ Win7 Debug ] virtual/new-remote-playback-pipeline/media/controls/video-enter-exit-fullscreen-without-hovering-doesnt-show-controls.html [ Failure ]
+crbug.com/746128 [ Mac ] virtual/new-remote-playback-pipeline/media/controls/video-enter-exit-fullscreen-without-hovering-doesnt-show-controls.html [ Failure Pass ]
 
 # Sheriff failures 2017-08-04
 crbug.com/626703 [ Win7 Release ] external/wpt/html/semantics/tabular-data/processing-model-1/span-limits.html [ Timeout ]
@@ -4698,7 +4699,7 @@ crbug.com/859102 virtual/gpu/fast/canvas/color-space/canvas-drawImage-rec2020.ht
 crbug.com/867532 [ Linux ] external/wpt/workers/modules/dedicated-worker-import-data-url.any.worker.html [ Timeout Pass ]
 crbug.com/867532 [ Linux ] external/wpt/workers/modules/dedicated-worker-import.any.worker.html [ Timeout Pass ]
 crbug.com/867628 [ Mac ] virtual/user-activation-v2/fast/events/middleClickAutoscroll-click-hyperlink.html [ Failure Pass ]
-crbug.com/867628 [ Mac ] virtual/user-activation-v2/fast/events/middleClickAutoscroll-nested-divs-forbidden.html [ Timeout Pass ]
+crbug.com/867628 [ Mac ] virtual/user-activation-v2/fast/events/middleClickAutoscroll-nested-divs-forbidden.html [ Timeout Pass Failure ]
 
 # Sheriff 2018-07-26
 crbug.com/867376 [ Mac Linux ] css3/filters/filter-repaint-composited-fallback-crash.html [ Timeout Pass ]