Bug 1446406 [wpt PR 10076] - Update wpt metadata, a=testonly

wpt-pr: 10076
wpt-type: metadata

testing/web-platform/meta/feature-policy/feature-policy-frame-policy-allowed-for-self.https.sub.html.ini

@@ -125,3 +125,15 @@
   [Test frame policy on cross origin iframe with allow = "'self' https://www.web-platform.test:8443 https://www.example.com" and allowfullscreen.]
     expected: FAIL
 
+  [Test frame policy on sandboxed iframe with no allow attribute.]
+    expected: FAIL
+
+  [Test frame policy on sandboxed iframe with allow="fullscreen".]
+    expected: FAIL
+
+  [Test frame policy on sandboxed iframe with allow="fullscreen 'src'".]
+    expected: FAIL
+
+  [Test frame policy on sandboxed iframe with allow="fullscreen https://www.web-platform.test:8443".]
+    expected: FAIL
+