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 9cb55a6a6f858e8274cf3ab1846c4a844c17ea0a..c8e6b9de1b41ecf91174aea99b22ea3249520efe 100644
--- a/third_party/WebKit/LayoutTests/TestExpectations
+++ b/third_party/WebKit/LayoutTests/TestExpectations
@@ -2278,13 +2278,6 @@ crbug.com/705125 virtual/mojo-loading/http/tests/security/cors-rfc1918/addresssp
 crbug.com/705125 http/tests/security/suborigins/crossorigin/suborigin-cors-xhr-failure-output.php [ Failure Pass ]
 crbug.com/705125 virtual/mojo-loading/http/tests/security/suborigins/crossorigin/suborigin-cors-xhr-failure-output.php [ Failure Pass ]
 
-# 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 ]