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This is a reland of 6e91b688

There was a clash with https://chromium-review.googlesource.com/c/chromium/src/+/1948892
which renamed a file that this CL included.

PS1 contains the original CL.

Original change's description:
> Added IPH for the mini-infobar notification permission prompt (android)
>
> As part of the new quieter notification prompt, add IPH for the android
> quieter notification permission prompt. To be shown the first time
> the setting is enabled.
>
> This is controlled by using the functions:
> * AdaptiveNotificationPermissionUiSelector::ShouldShowPromo
> * AdaptiveNotificationPermissionUiSelector::PromoWasShown
>
> Quick mock of how this is supposed to look:
> https://docs.google.com/document/d/1hsp1j08yzIK6M6G7pbsdEihU8CLN7QQ3V2iAxESrqQM/edit?usp=sharing
>
> Bug: 1029595
> Change-Id: I3c90dda846a70396f1130c2ad6dcfc3622b9b25f
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1944173
> Commit-Queue: Andy Paicu <andypaicu@chromium.org>
> Reviewed-by: Brian White <bcwhite@chromium.org>
> Reviewed-by: Matthew Jones <mdjones@chromium.org>
> Reviewed-by: Kamila Hasanbega <hkamila@chromium.org>
> Reviewed-by: David Trainor <dtrainor@chromium.org>
> Reviewed-by: Balazs Engedy <engedy@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#721442}

TBR=nyquist@chromium.org,engedy@chromium.org,dtrainor@chromium.org,bcwhite@chromium.org,mdjones@chromium.org,bsazonov@chromium.org,hkamila@chromium.org

Bug: 1029595
Change-Id: I33eb37e289c8bbea9f8ff3aba51db229aa523381
No-Presubmit: true
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1950513
Commit-Queue: Andy Paicu <andypaicu@chromium.org>
Reviewed-by: Brian White <bcwhite@chromium.org>
Reviewed-by: Andy Paicu <andypaicu@chromium.org>
Reviewed-by: Balazs Engedy <engedy@chromium.org>
Cr-Commit-Position: refs/heads/master@{#721517}