Remove some usage of testRunner.setPermission.

LayoutTests/resources/permissions-helper.js

 // This file provides a PermissionsHelper object which can be used by
 // LayoutTests using testRunner to handle permissions. The methods in the object
 // return promises so can be used to write idiomatic, race-free code.
 //
 // The current available methods are:
 // - setPermission: given a permission name (known by testRunner) and a state,
 // it will set the permission to the specified state and resolve the promise
 // when done.
 // Example:
 // PermissionsHelper.setPermission('geolocation', 'prompt').then(runTest);
@@ skipping 24 matching lines @@
             if (result.state == state) {
                 resolver()
                 return;
             }
 
             result.onchange = function() {
                 result.onchange = null;
                 resolver();
             };
 
             testRunner.setPermission(name, state, location.origin, location.origin);

[whywhat, 2015/09/16 15:03:09]

you haven't really removed setPermission from here (hint: there're 4 matches in
the file)

I guess you are using this to get rid of the call in other places so it's fine
but this file shouldn't be changed at all.

         });
       });
     }
   }
-})();
+})();