Add bug URL to ChangeLog.


git-svn-id: http://svn.webkit.org/repository/webkit/trunk@38757 268f45cc-cd09-0410-ab3c-d52691b4dbfc
diff --git a/WebCore/ChangeLog b/WebCore/ChangeLog
index 5fdab4e..fb6d1b9 100644
--- a/WebCore/ChangeLog
+++ b/WebCore/ChangeLog
@@ -2,6 +2,7 @@
 
         Reviewed by Alexey Proskuryakov.
 
+        https://bugs.webkit.org/show_bug.cgi?id=22443
         Made the PreflightResultCache thread-safe in preparation for usage of XMLHttpRequest by
         Workers on threads.