[iOS][MICE] Reload URL after the user signs in through the web.

Once the user is signed in on the bottomsheet, Chrome will redirect
them to their original destination by loading its URL in the current tab.

Bug: 1151288
Change-Id: I8b263cf2025fa0f004acc1d1c58f73ccb67c9d14
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2840265
Reviewed-by: Mark Cogan <marq@chromium.org>
Reviewed-by: Jérôme Lebel <jlebel@chromium.org>
Commit-Queue: Nohemi Fernandez <fernandex@chromium.org>
Cr-Commit-Position: refs/heads/master@{#874721}
GitOrigin-RevId: b5b94d13c3eb55496c6c02ab7b60896fffc38d5f
4 files changed