
SigninViewController::ShowReauthPopup() will start showing a popup window with a reauth page if "SigninReauthPrompt" feature is enabled. This popup observes all navigations and reports success once a special reauth endpoint is successfully loaded. This endpoint is currently available only on test Gaia. The behavior of ShowReauthPopup() without the feature flag also has changed. Now Chrome will display a fake reauth dialog by default. ShowReauthPopup() is still in development and shouldn't be used without a flag anyways. There is no need to guard it behind another feature flag. The screen recording of the resulting flow is available at https://screencast.googleplex.com/cast/NTM5Njc2MjgxNjY3NTg0MHw0MTg2MGQ0OS02Yg Bug: 1045515 Change-Id: I8a685b593dadec3ec059c77a6a4eccb946f4c98c Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2107840 Commit-Queue: Alex Ilin <alexilin@chromium.org> Reviewed-by: David Roger <droger@chromium.org> Cr-Commit-Position: refs/heads/master@{#751342}