Bug 1457329 - disabled test_taskbar_jumplistitems.js on Windows 10 for frequent falures. r=jmaher

--HG--
extra : rebase_source : 08458db8e4b571a0ea3e549ba8c4e82d256b022a
extra : histedit_source : 06adf817214d155539edf235e0a9471b4d761a91

widget/tests/unit/xpcshell.ini

@@ -2,6 +2,7 @@
 head = 
 
 [test_taskbar_jumplistitems.js]
+skip-if = os == "win" && os_version == "10.0" # Bug 1457329
 [test_macsharingservice.js]
 skip-if = os != "mac"
 [test_macwebapputils.js]