1 files changed, 13 insertions, 0 deletions
diff --git a/components/script/dom/webidls/VisibilityStateEntry.webidl b/components/script/dom/webidls/VisibilityStateEntry.webidl
new file mode 100644
index 00000000000..12e85541be5
--- /dev/null
+++ b/components/script/dom/webidls/VisibilityStateEntry.webidl
@@ -0,0 +1,13 @@
+/* This Source Code Form is subject to the terms of the Mozilla Public
+ * License, v. 2.0. If a copy of the MPL was not distributed with this
+ * file, You can obtain one at https://mozilla.org/MPL/2.0/. */
+
+// https://html.spec.whatwg.org/multipage/#visibilitystateentry
+
+[Exposed=(Window)]
+interface VisibilityStateEntry : PerformanceEntry {
+  readonly attribute DOMString name;                 // shadows inherited name
+  readonly attribute DOMString entryType;            // shadows inherited entryType
+  readonly attribute DOMHighResTimeStamp startTime;  // shadows inherited startTime
+  readonly attribute unsigned long duration;         // shadows inherited duration
+};