1 files changed, 5 insertions, 1 deletions
diff --git a/Source/WebCore/page/PerformanceMark.idl b/Source/WebCore/page/PerformanceMark.idl
index 45ba6b1b3..be44db03d 100644
--- a/Source/WebCore/page/PerformanceMark.idl
+++ b/Source/WebCore/page/PerformanceMark.idl
@@ -23,7 +23,11 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
+// https://w3c.github.io/user-timing/
+
 [
-    Conditional=USER_TIMING,
+    Conditional=WEB_TIMING,
+    EnabledAtRuntime=UserTiming,
+    Exposed=(Window,Worker),
 ] interface PerformanceMark : PerformanceEntry {
 };