Fixing the DOM event streams test to work on FF and IE.

Fixing the DOM event streams test to work on FF and IE.

I was using the focus event since it's supposed to be synchronous and it's nice to test with a browser-generated event for completeness, but it turns out the IE and FF<18 implement this as an async event (FF 18 appears to be correct).

Just changed the test to manually trigger the event which is a fairly close approximation.

BUG=7888
Committed: https://code.google.com/p/dart/source/detail?r=17102

[Jennifer Messerly, 2013-01-14 21:56:51]

lgtm

https://codereview.chromium.org/11875022/diff/1/tests/html/streams_test.dart
File tests/html/streams_test.dart (right):

https://codereview.chromium.org/11875022/diff/1/tests/html/streams_test.dart#...
tests/html/streams_test.dart:20: _a.$dom_dispatchEvent(event);
is there a way to do this without $dom_?

[blois, 2013-01-14 22:00:05]

https://codereview.chromium.org/11875022/diff/1/tests/html/streams_test.dart
File tests/html/streams_test.dart (right):

https://codereview.chromium.org/11875022/diff/1/tests/html/streams_test.dart#...
tests/html/streams_test.dart:20: _a.$dom_dispatchEvent(event);
On 2013/01/14 21:56:51, John Messerly wrote:
> is there a way to do this without $dom_?

Currently it's on the old events API, but I need to either un-hide this method
or add it to EventStreamProvider. I used this method to keep it independent of
the old API, even though the old API cannot be removed until there's a proper
alternative for dispatching.