Bug 1600131 [wpt PR 20512] - Update interfaces/feature-policy.idl, a=testonly

Automatic update from web-platform-tests
Update interfaces/feature-policy.idl (#20512)

Source: https://github.com/tidoust/reffy-reports/blob/25d2be7/ed/idl/feature-policy.idl
Build: https://travis-ci.org/tidoust/reffy-reports/builds/618316376
--

wpt-commits: e2c5dc96935d80d9ce4a140f56a78c6cb624214f
wpt-pr: 20512

Author: autofoolip

testing/web-platform/tests/interfaces/feature-policy.idl

@@ -3,6 +3,7 @@
 // (https://github.com/tidoust/reffy-reports)
 // Source: Feature Policy (https://w3c.github.io/webappsec-feature-policy/)
 
+[Exposed=Window]
 interface FeaturePolicy {
   boolean allowsFeature(DOMString feature, optional DOMString origin);
   sequence features();
@@ -17,6 +18,7 @@ partial interface Document {
 partial interface HTMLIFrameElement {
     [SameObject] readonly attribute FeaturePolicy featurePolicy;
 };
+
 [Exposed=Window]
 interface FeaturePolicyViolationReportBody : ReportBody {
   readonly attribute DOMString featureId;