[ServiceWorker] Update formatting for tests.

LayoutTests/http/tests/serviceworker/resources/interfaces.js

 function verifyInterface(name, instance, attributes) {

[jsbell, 2014/07/31 20:37:23]

We could rename this verify_interface... but then again, we should probably look
into using idlharness.js once we can use testharness.js in workers.

(I think Blink fails many idlharness tests due to crbug.com/43394, though, so
maybe not yet.)

[asanka, 2014/08/01 05:15:52]

Good point. There are tests like this in w3c/web-platform-tests:
https://github.com/w3c/web-platform-tests/blob/master/service-workers/stub-4....

For now I renamed the function. I'll see if we can at least get it working for
serviceworker once the urgent tests are done.

     assert_true(name in self,
-                name + ' should be an defined type');
+                name + ' should be a defined type');
     if (instance) {
         assert_true(instance instanceof self[name],
                     instance + ' should be an instance of ' + name);
         Object.keys(attributes || {}).forEach(function(attribute) {
             var type = attributes[attribute];
             assert_true(attribute in instance,
                         attribute + ' should be an attribute of ' + name);
             assert_equals(typeof instance[attribute], type,
                           attribute + ' should be of type ' + type);
         });
     }
 }