Bug 1353074 - Run Components permission test in all sandboxes; r=maja_zf

The Components.classes constructor should throw an error in both the
mutable and the "default" sandbox.

MozReview-Commit-ID: C40nZNaVWwz

--HG--
extra : rebase_source : f02506f16ff409761ba09ae0f32ff2902cdf07a3

testing/marionette/harness/marionette_harness/tests/unit/test_execute_script.py

@@ -164,10 +164,10 @@ class TestExecuteContent(MarionetteTestCase):
         self.assertIn("return b", cm.exception.stacktrace)
 
     def test_permission(self):
-        with self.assertRaises(errors.JavascriptException):
-            self.marionette.execute_script("""
-                var c = Components.classes["@mozilla.org/preferences-service;1"];
-            """)
+        for sandbox in ["default", None]:
+            with self.assertRaises(errors.JavascriptException):
+               self.marionette.execute_script(
+                    "Components.classes['@mozilla.org/preferences-service;1']")
 
     def test_return_web_element(self):
         self.marionette.navigate(elements)