GitLab

This reverts commit a17de6fe.

Reason for revert: The options in the selection menu don't work. Copy and Select All don't do anything.

Original change's description:
> Interstitial call ShowContextMenu on Android
> 
> Override |ShowContextMenu()| in InterstitialPageImpl and have it call
> |WebContentsViewAndroid.ShowContextMenu()| on Android. This is done to
> show the floating text selection menu (see linked bug).
> 
> Bug: 823173
> Change-Id: I01090aee43536cd06c8f8bc28ebccf5c2767d0d8
> Reviewed-on: https://chromium-review.googlesource.com/977240
> Reviewed-by: Bo <boliu@chromium.org>
> Reviewed-by: Carlos IL <carlosil@chromium.org>
> Commit-Queue: Pedro Amaral <amaralp@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#546210}

TBR=boliu@chromium.org,amaralp@chromium.org,carlosil@chromium.org

# Not skipping CQ checks because original CL landed > 1 day ago.

Bug: 823173
Change-Id: Ia0743769b372b93acda2835c2274456f3a5379a0
Reviewed-on: https://chromium-review.googlesource.com/994191Reviewed-by: Pedro Amaral <amaralp@chromium.org>
Reviewed-by: Carlos IL <carlosil@chromium.org>
Commit-Queue: Pedro Amaral <amaralp@chromium.org>
Cr-Commit-Position: refs/heads/master@{#547953}