Bug 1439820 [wpt PR 9595]- Update wpt metadata, a=testonly

wpt-pr: 9595 wpt-type: metadata
2018-02-22 07:37:17 +00:00 · 2018-02-22 07:37:17 +00:00 · 9603e3334c
--- a/testing/web-platform/meta/preload/link-header-preload-srcset.html.ini
+++ b/testing/web-platform/meta/preload/link-header-preload-srcset.html.ini
@ -0,0 +1,4 @@
+[link-header-preload-srcset.html]
+  [Makes sure that Link headers preload images with (experimental) srcset/imgsizes attributes.]
+    expected: FAIL
+