GitLab

When the lookalike URL interstitial stops a redirect, reloading it navigates to
the end of the redirect chain which hides the interstitial.

In order to prevent this, this CL stores the parameters of the interstitial
(URL, redirect chain and referrer) as WebContentsUserData. On page reload,
the throttle retrieves the parameters and checks if the currently navigated URL
is at the end of the stored redirect chain. If so, it cancels the current
navigation (the reload) and navigates back to the original lookalike URL that
triggered the interstitial.

As a result, a reload will end up with the same
interstitial as before. The throttle immediately clears stored interstitial
parameters after it retrieves them, so that unrelated navigations (to a
different URL, or initiated directly by the user) don't re-trigger the
interstitial.

Bug: 941886
Change-Id: If37802815f296bf534d7fb3b54fe96813d1659d7
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1715759
Commit-Queue: Mustafa Emre Acer <meacer@chromium.org>
Reviewed-by: Joe DeBlasio <jdeblasio@chromium.org>
Cr-Commit-Position: refs/heads/master@{#682093}