GitLab

Stop observing paymentPortal iframe load in MobileSetupUI - MobileSetupUI
sends portal load status messages to the mobile setup webui, but webui
merely ignores them. The paymentPortal load status is observed directly
in webui by using webview APIs, so messages from the MobileSetupUI are
not needed anymore.

Change-Id: Ic757e786d4b7efbc3242544f0f9db90226fc8ffa
Reviewed-on: https://chromium-review.googlesource.com/c/1318850Reviewed-by: Steven Bennetts <stevenjb@chromium.org>
Commit-Queue: Toni Baržić <tbarzic@chromium.org>
Cr-Commit-Position: refs/heads/master@{#605779}