Have sendBeacon throw for Blobs with a type that is not CORS-safelisted.

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 eb03c228662d520adb012e0dca68e6d35d25ae1b..68c47912cf0eb11ba0b6d300c965af35b1c5d9a5 100644
--- a/third_party/WebKit/LayoutTests/TestExpectations
+++ b/third_party/WebKit/LayoutTests/TestExpectations
@@ -1664,13 +1664,6 @@ crbug.com/705125 virtual/mojo-loading/http/tests/w3c/webperf/submission/Intel/us
 crbug.com/705125 virtual/mojo-loading/http/tests/security/cors-rfc1918/addressspace-document-appcache.html [ Failure ]
 crbug.com/705125 virtual/mojo-loading/http/tests/security/cors-rfc1918/addressspace-document-csp-appcache.html [ Failure ]
 
-# This test breaks when the feature introduced in the bug is enabled. We keep
-# this tested without the feature by using the virtual test. See
-# virtual/stable/http/tests/sendbeacon/beacon-cross-origin-redirect-blob-expected.txt
-crbug.com/490015 http/tests/sendbeacon/beacon-cross-origin-redirect-blob.html [ Skip ]
-crbug.com/490015 virtual/mojo-loading/http/tests/sendbeacon/beacon-cross-origin-redirect-blob.html [ Skip ]
-# This test doesn't need to be run with the stable release mode.
-crbug.com/490015 virtual/stable/http/tests/sendbeacon/beacon-blob-with-non-simple-type.html [ Skip ]
 # This test fails with the stable release mode.
 crbug.com/694958 virtual/stable/http/tests/navigation/same-and-different-back.html [ Skip ]