[presentation-api-tests] Set navigator.presentation.defaultRequest + sync IDL (#3533)

1. Sync controller IDL with current Editor's draft [1]
2. Set navigator.presentation.defaultRequest so that PresentationRequest interface tests pass
3. Add a PresentationRequest interface test for multiple URL constructor


View on GitHub: https://github.com/w3c/web-platform-tests/pull/3533

Received on Monday, 22 August 2016 23:25:16 UTC