Updated to Chrome 45 (2454) moved from SVN to git.

core/timing/PerformanceEntry.idl

Index: core/timing/PerformanceEntry.idl
diff --git a/core/timing/PerformanceEntry.idl b/core/timing/PerformanceEntry.idl
index 8e382cd05074d98d570a065ebf1fb9c06eec3176..b18ac79c240fdc70ca565380164700d777c25b29 100644
--- a/core/timing/PerformanceEntry.idl
+++ b/core/timing/PerformanceEntry.idl
@@ -28,12 +28,15 @@
  * 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/#the-performanceentry-interface
+
 [
-    WillBeGarbageCollected,
+    // TODO(philipj): Exposed=(Window,Worker)
+    GarbageCollected,
 ] 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};
 };