Suppress some layout test failures for upcoming Skia roll.

third_party/WebKit/LayoutTests/TestExpectations

 # Intentional failures to test the layout test system.
 Bug(intentional) [ Android Linux Win Mac10.10 Mac10.11 Retina Mac10.12 ] harness-tests/crash.html [ Crash ]
 crbug.com/644303 [ Mac10.9 ] harness-tests/crash.html [ Crash Timeout ]
 Bug(intentional) harness-tests/timeout.html [ Timeout ]
 
 # ====== Oilpan-only failures from here ======
 # Most of these actually cause the tests to report success, rather than
 # failure. Expected outputs will be adjusted for the better once Oilpan
 # has been well and truly enabled always.
 
@@ skipping 2658 matching lines @@
 crbug.com/697971 [ Mac10.12 ] virtual/disable-spinvalidation/paint/invalidation/subtree-root-skipped.html [ Failure ]
 crbug.com/697971 [ Mac10.12 ] virtual/disable-spinvalidation/paint/invalidation/textarea-caret.html [ Failure ]
 crbug.com/697971 [ Mac10.12 ] virtual/gpu-rasterization/images/12-55.html [ Failure ]
 crbug.com/697971 [ Mac10.12 ] virtual/gpu-rasterization/images/182.html [ Failure ]
 crbug.com/697971 [ Mac10.12 ] virtual/gpu-rasterization/images/2-dht.html [ Failure ]
 crbug.com/697971 [ Mac10.12 ] virtual/gpu-rasterization/images/23-55.html [ Failure ]
 crbug.com/697971 [ Mac10.12 ] virtual/gpu-rasterization/images/55.html [ Failure ]
 crbug.com/697971 [ Mac10.12 ] virtual/gpu-rasterization/images/color-profile-background-image-cross-fade-png.html [ Failure ]
 crbug.com/697971 [ Mac10.12 ] virtual/gpu-rasterization/images/color-profile-background-image-cross-fade.html [ Failure ]
 crbug.com/697971 [ Mac10.12 ] virtual/gpu-rasterization/images/color-profile-mask-image-svg.html [ Failure ]
-crbug.com/697971 [ Mac10.12 ] virtual/gpu/fast/canvas/canvas-arc-circumference-fill.html [ Failure ]
-crbug.com/697971 [ Mac10.12 ] virtual/gpu/fast/canvas/canvas-arc-circumference.html [ Failure ]
-crbug.com/697971 [ Mac10.12 ] virtual/gpu/fast/canvas/canvas-ellipse-circumference-fill.html [ Failure ]
-crbug.com/697971 [ Mac10.12 ] virtual/gpu/fast/canvas/canvas-ellipse-circumference.html [ Failure ]
-crbug.com/697971 [ Mac10.12 ] virtual/gpu/fast/canvas/canvas-incremental-repaint.html [ Failure ]
+#crbug.com/697971 [ Mac10.12 ] virtual/gpu/fast/canvas/canvas-arc-circumference-fill.html [ Failure ]
+#crbug.com/697971 [ Mac10.12 ] virtual/gpu/fast/canvas/canvas-arc-circumference.html [ Failure ]
+#crbug.com/697971 [ Mac10.12 ] virtual/gpu/fast/canvas/canvas-ellipse-circumference-fill.html [ Failure ]
+#crbug.com/697971 [ Mac10.12 ] virtual/gpu/fast/canvas/canvas-ellipse-circumference.html [ Failure ]
+#crbug.com/697971 [ Mac10.12 ] virtual/gpu/fast/canvas/canvas-incremental-repaint.html [ Failure ]
 crbug.com/697971 [ Mac10.12 ] virtual/mojo-loading/http/tests/filesystem/input-display.html [ Failure ]
 crbug.com/697971 [ Mac10.12 ] virtual/mojo-loading/http/tests/inspector-protocol/network-data-length.html [ Failure ]
 crbug.com/697971 [ Mac10.12 ] virtual/mojo-loading/http/tests/media/media-source/mediasource-is-type-supported.html [ Failure ]
 crbug.com/697971 [ Mac10.12 ] virtual/mojo-loading/http/tests/media/video-buffered-range-contains-currentTime.html [ Failure ]
 crbug.com/697971 [ Mac10.12 ] virtual/mojo-loading/http/tests/misc/acid2-pixel.html [ Failure ]
 crbug.com/697971 [ Mac10.12 ] virtual/mojo-loading/http/tests/misc/bad-charset-alias.html [ Failure ]
 crbug.com/697971 [ Mac10.12 ] virtual/mojo-loading/http/tests/streams/readable-streams/count-queuing-strategy-integration.html [ Failure ]
 crbug.com/697971 [ Mac10.12 ] virtual/mojo-loading/http/tests/webfont/popup-menu-load-webfont-after-open.html [ Pass Failure ]
 crbug.com/697971 [ Mac10.12 ] virtual/prefer_compositing_to_lcd_text/compositing/overflow/border-radius-styles-with-composited-child.html [ Failure ]
 crbug.com/697971 [ Mac10.12 ] virtual/prefer_compositing_to_lcd_text/compositing/overflow/do-not-paint-outline-into-composited-scrolling-contents.html [ Failure ]
@@ skipping 99 matching lines @@
 crbug.com/669473 external/csswg-test/css-ui-3/box-sizing-024.html [ Failure ]
 crbug.com/669473 external/csswg-test/css-ui-3/box-sizing-025.html [ Failure ]
 crbug.com/669473 external/csswg-test/css-ui-3/text-overflow-002.html [ Failure ]
 crbug.com/669473 external/csswg-test/css-ui-3/text-overflow-004.html [ Failure ]
 
 crbug.com/670024 external/wpt/webmessaging/broadcastchannel/sandbox.html [ Failure ]
 crbug.com/660384 external/wpt/webmessaging/with-ports/001.html [ Failure ]
 crbug.com/660384 external/wpt/webmessaging/without-ports/001.html [ Failure ]
 crbug.com/673526 external/wpt/webmessaging/message-channels/close.html [ Failure ]
 
+crbug.com/642376 virtual/gpu/fast/canvas/canvas-arc-circumference-fill.html [ NeedsManualRebaseline ]
+crbug.com/642376 virtual/gpu/fast/canvas/canvas-arc-circumference.html [ NeedsManualRebaseline ]
+crbug.com/642376 virtual/gpu/fast/canvas/canvas-ellipse-circumference-fill.html [ NeedsManualRebaseline ]
+crbug.com/642376 virtual/gpu/fast/canvas/canvas-ellipse-circumference.html [ NeedsManualRebaseline ]
+crbug.com/642376 virtual/gpu/fast/canvas/canvas-incremental-repaint.html [ NeedsManualRebaseline ]
+
 # Added 2016-12-12
 crbug.com/610835 http/tests/security/XFrameOptions/x-frame-options-deny-multiple-clients.html [ Failure Pass ]
 crbug.com/610835 virtual/mojo-loading/http/tests/security/XFrameOptions/x-frame-options-deny-multiple-clients.html [ Failure Pass ]
 
 # Added 2016-12-12
 crbug.com/673539 [ Linux Win ] css3/filters/effect-contrast-hw.html [ Pass Failure ]
 
 # Added 2016-12-15
 crbug.com/674466 [ Win10 ] fast/forms/select/menulist-appearance-rtl.html [ Pass Failure ]
 
@@ skipping 145 matching lines @@
 crbug.com/697342 virtual/mojo-loading/http/tests/push_messaging/permission-state-granted-in-document.html [ Pass Failure ]
 
 crbug.com/698520 external/wpt/preload/fetch-destination.https.html [ Failure Pass ]
 crbug.com/698521 external/wpt/preload/preload-with-type.html [ Failure Pass ]
 
 # Sheriff failures 2017-03-10
 crbug.com/402805 [ Mac10.10 Mac10.11 ] inspector-protocol/input/emulateTouchFromMouseEvent.html [ Timeout ]
 crbug.com/700374 [ Win ] virtual/mojo-loading/http/tests/inspector/workers-on-navigation.html [ Failure Pass ]
 crbug.com/700374 [ Win ] http/tests/inspector/workers-on-navigation.html [ Failure Pass ]
 crbug.com/700387 [ Win7 ] external/wpt/fullscreen/api/document-exit-fullscreen-nested-in-iframe-manual.html [ Timeout Pass ]