Mark...

Mark virtual/threaded/synthetic_gestures/synthetic-pinch-zoom-gesture-touchscreen* as Failure on Android

TBR=mcnee@chromium.org

No-Try: true
Bug: 871139
Change-Id: If29b18d3297e306364b87f0c2582bab476c35c68
Reviewed-on: https://chromium-review.googlesource.com/1163408Reviewed-by: Kunihiko Sakamoto <ksakamoto@chromium.org>
Commit-Queue: Kunihiko Sakamoto <ksakamoto@chromium.org>
Cr-Commit-Position: refs/heads/master@{#580816}

third_party/WebKit/LayoutTests/TestExpectations

@@ -4841,3 +4841,8 @@ crbug.com/862806 [ Linux ] css3/filters/effect-drop-shadow-hw.html [ Pass Timeou
 
 # Sheriff 2018-08-02
 crbug.com/870259 [ Mac ] http/tests/media/video-throttled-load-metadata.html [ Pass Timeout ]
+
+# Sheriff 2018-08-06
+crbug.com/871139 [ Android ] virtual/threaded/synthetic_gestures/synthetic-pinch-zoom-gesture-touchscreen-zoom-in-slow.html [ Failure ]
+crbug.com/871139 [ Android ] virtual/threaded/synthetic_gestures/synthetic-pinch-zoom-gesture-touchscreen-zoom-out-slow.html [ Failure ]
+crbug.com/871139 [ Android ] virtual/threaded/synthetic_gestures/synthetic-pinch-zoom-gesture-touchscreen.html [ Failure ]