Merge pull request #1572 from egrs/intersection-observer-timestamp

Use performance.now() for IntersectionObserverEntry.time

src/browser/tests/intersection_observer/basic.html

@@ -25,6 +25,8 @@
         testing.expectEqual('number', typeof entry.intersectionRatio);
         testing.expectEqual('object', typeof entry.boundingClientRect);
         testing.expectEqual('object', typeof entry.intersectionRect);
+        testing.expectEqual('number', typeof entry.time);
+        testing.expectEqual(true, entry.time > 0);
 
         observer.disconnect();
     });

src/browser/webapi/IntersectionObserver.zig

@@ -246,7 +246,7 @@ fn checkIntersection(self: *IntersectionObserver, target: *Element, page: *Page)
             ._page = page,
             ._arena = arena,
             ._target = target,
-            ._time = 0.0, // TODO: Get actual timestamp
+            ._time = page.window._performance.now(),
             ._bounding_client_rect = data.bounding_client_rect,
             ._intersection_rect = data.intersection_rect,
             ._root_bounds = data.root_bounds,