This is easier to understand as we don't have to round-trip the whole success and error states to the privileged wrapper which could potentially lead to stale state changes.
This is also much simpler for the basic-card-form as it doesn't need a lot of the complexity of the previous implementation.
* Move selectedStateKey from page to address-page since it doesn't apply to basic-card-page
MozReview-Commit-ID: B4kiZNWElGI
This is easier to understand as we don't have to round-trip the whole success and error states to the privileged wrapper which could potentially lead to stale state changes.
This is also much simpler for the basic-card-form as it doesn't need a lot of the complexity of the previous implementation.
* Move selectedStateKey from page to address-page since it doesn't apply to basic-card-page
MozReview-Commit-ID: B4kiZNWElGI
* A new CompletionErrorPage / completion-error-page element which represents the content of the completion error
* Leave the dialog open when complete() results in a 'fail' or 'timeout'.
* The 'done' button on the fail & timeout error page closes the dialog by sending a message up to the paymentDialogWrapper.
* Rewrite the pay button rendering logic to ensure it is disabled when it should be
* Retry handling and UI not addressed here. Will need a new bug when the DOM support has landed.
* Extend completeStatus support in debugging.html and group like actions to tidy up a bit
MozReview-Commit-ID: GDhJqrj14uT
* Add tests to verify that the dialog stays open when completion fails or times out
* Add tests to verify that complete() throws after the timeout
* Rework completeStatus mochitest for PaymentDialog
MozReview-Commit-ID: 4ZNVEYMp7h5
