Bug 822284 - Attempt to fix some intermittent oranges by delaying finishing the test for a bit.

browser/components/privatebrowsing/test/browser/perwindow/browser_privatebrowsing_cookieacceptdialog.js

@@ -35,7 +35,7 @@ function test() {
                "The checkbox should not be disabled");
 
           win.close();
-          callback();
+          executeSoon(callback);
         });
       }, false);
     }

browser/components/privatebrowsing/test/browser/perwindow/browser_privatebrowsing_crh.js

@@ -18,7 +18,7 @@ function test() {
       is(crhCommand.hasAttribute("disabled"), aPrivateMode,
         "Clear Recent History command should be disabled according to the private browsing mode");
 
-      aCallback();
+      executeSoon(aCallback);
     });
   };