Add time stamp to the constructor of the events

third_party/WebKit/LayoutTests/external/wpt/pointerevents/extension/pointerevent_coalesced_events_attributes-manual.html

Index: third_party/WebKit/LayoutTests/external/wpt/pointerevents/extension/pointerevent_coalesced_events_attributes-manual.html
diff --git a/third_party/WebKit/LayoutTests/external/wpt/pointerevents/extension/pointerevent_coalesced_events_attributes-manual.html b/third_party/WebKit/LayoutTests/external/wpt/pointerevents/extension/pointerevent_coalesced_events_attributes-manual.html
index 4610806b3fca31a59a368ebd7b250852c15e2e2c..89149468a5d23d494f6b09d4142b43c8d1d2289c 100644
--- a/third_party/WebKit/LayoutTests/external/wpt/pointerevents/extension/pointerevent_coalesced_events_attributes-manual.html
+++ b/third_party/WebKit/LayoutTests/external/wpt/pointerevents/extension/pointerevent_coalesced_events_attributes-manual.html
@@ -77,9 +77,15 @@
                               test (function() {
                                 for (var i=0; i<coalescedEvents.length; i++) {
                                   assert_equals(coalescedEvents[i].isTrusted, true, 'isTrusted flag should be true for coalesced events.');
+                                  if (i > 0)
+                                    assert_greater_than_equal(coalescedEvents[i].timeStamp, coalescedEvents[i-1].timeStamp, 'Time stamps of coalesced events must be ascending.');
                                 }
                               }, expectedPointerType + ' pointermove coalesced events should all be marked as trusted.');
                               test (function() {
+                                for (var i=1; i<coalescedEvents.length; i++)
+                                  assert_greater_than_equal(coalescedEvents[i].timeStamp, coalescedEvents[i-1].timeStamp, 'Time stamps of coalesced events must be ascending.');
+                              }, expectedPointerType + ' time stamps of coalesced events must be ascending.');
+                              test (function() {
                                 for (var i=0; i<coalescedEvents.length; i++) {
                                   assert_equals(coalescedEvents[i].bubbles, false, 'Bubbles attribute should be false for coalesced events.');
                                   assert_equals(coalescedEvents[i].cancelable, false, 'Cancelable attribute should be false for coalesced events.');