LayoutTests: Disabling more service-worker tests.

third_party/WebKit/LayoutTests/TestExpectations

Index: third_party/WebKit/LayoutTests/TestExpectations
diff --git a/third_party/WebKit/LayoutTests/TestExpectations b/third_party/WebKit/LayoutTests/TestExpectations
index 400d73d8dc605e9304b49705bfe2257df32423a2..924e1f0b1736d69997566236b296e300fd4b472c 100644
--- a/third_party/WebKit/LayoutTests/TestExpectations
+++ b/third_party/WebKit/LayoutTests/TestExpectations
@@ -2466,6 +2466,9 @@ crbug.com/595993 virtual/off-main-thread-fetch/external/wpt/service-workers/serv
 crbug.com/595993 external/wpt/service-workers/service-worker/request-end-to-end.https.html [ Failure ]
 crbug.com/595993 virtual/off-main-thread-fetch/external/wpt/service-workers/service-worker/request-end-to-end.https.html [ Failure ]
 
+crbug.com/595993 external/wpt/service-workers/service-worker/fetch-canvas-tainting.https.html [ Skip ]
+crbug.com/595993 virtual/off-main-thread-fetch/external/wpt/service-workers/service-worker/fetch-canvas-tainting.https.html [ Skip ]
+
 crbug.com/735883 [ Win10 ] external/wpt/service-workers/service-worker/fetch-canvas-tainting-cache.https.html [ Pass Failure ]
 
 crbug.com/619427 [ Mac Linux ] fast/overflow/overflow-height-float-not-removed-crash3.html [ Pass Failure ]