1 files changed, 9 insertions, 4 deletions
diff --git a/Source/WebCore/page/PerformanceEntry.idl b/Source/WebCore/page/PerformanceEntry.idl
index 23f79479b..47d317c22 100644
--- a/Source/WebCore/page/PerformanceEntry.idl
+++ b/Source/WebCore/page/PerformanceEntry.idl
@@ -28,14 +28,19 @@
  * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
  */
 
-// See: https://dvcs.w3.org/hg/webperf/raw-file/tip/specs/PerformanceTimeline/Overview.html
+// https://w3c.github.io/performance-timeline/
+
+typedef double DOMHighResTimeStamp;
+
 [
     Conditional=WEB_TIMING,
-    Conditional=PERFORMANCE_TIMELINE,
     CustomToJSObject,
+    EnabledAtRuntime=PerformanceTimeline,
+    Exposed=(Window,Worker),
 ] interface PerformanceEntry {
     readonly attribute DOMString name;
     readonly attribute DOMString entryType;
-    readonly attribute double startTime;
-    readonly attribute double duration;
+    readonly attribute DOMHighResTimeStamp startTime;
+    readonly attribute DOMHighResTimeStamp duration;
+    serializer = { attribute };
 };