Bug 1535554 [wpt PR 15773] - Update wpt metadata, a=testonly

wpt-pr: 15773
wpt-type: metadata

testing/web-platform/meta/pointerevents/__dir__.ini

@@ -0,0 +1 @@
+leak-threshold: [default:153600, tab:256000]

testing/web-platform/meta/pointerevents/pointerevent_mouse_capture_change_hover.html.ini

@@ -0,0 +1,7 @@
+[pointerevent_mouse_capture_change_hover.html]
+  [Mouse down and capture to green, move to blue and release capture]
+    expected: FAIL
+
+  [Mouse down at green and capture to blue.]
+    expected: FAIL
+

testing/web-platform/meta/pointerevents/pointerevent_mouse_pointercapture_in_frame.html.ini

@@ -0,0 +1,5 @@
+[pointerevent_mouse_pointercapture_in_frame.html]
+  expected: ERROR
+  [Test pointer capture event route across the same-origin frame: Mouse down with set capture at inner frame, then release on next mouse move.]
+    expected: FAIL
+

testing/web-platform/meta/pointerevents/pointerevent_mouse_pointercapture_inactivate_pointer.html.ini

@@ -0,0 +1,4 @@
+[pointerevent_mouse_pointercapture_inactivate_pointer.html]
+  [setPointerCapture: outer frame capture pointer active in inner frame]
+    expected: FAIL
+