Bug 1358846: Temporarily disable low-value tests that fail only on Windows. r=me

MozReview-Commit-ID: AklygLaeckt

--HG--
extra : rebase_source : 39b68fc73a87caacb8a401d786df9e0a21569bc2

toolkit/mozapps/extensions/test/xpcshell/xpcshell-shared.ini

@@ -36,7 +36,7 @@ skip-if = os == "android"
 tags = blocklist
 [test_bootstrap.js]
 # Bug 676992: test consistently hangs on Android
-skip-if = os == "android"
+skip-if = os == "android" || os == "win" # Bug 1358846
 [test_bootstrap_const.js]
 [test_bootstrap_resource.js]
 [test_bug299716.js]
@@ -151,6 +151,7 @@ fail-if = os == "android"
 [test_bug570173.js]
 [test_bug576735.js]
 [test_bug587088.js]
+skip-if = os == "win" # Bug 1358846
 [test_bug595081.js]
 [test_bug595573.js]
 [test_bug596607.js]
@@ -289,6 +290,7 @@ fail-if = os == "android"
 [test_undothemeuninstall.js]
 skip-if = appname == "thunderbird"
 [test_undouninstall.js]
+skip-if = os == "win" # Bug 1358846
 [test_uninstall.js]
 [test_update.js]
 # Bug 676992: test consistently hangs on Android