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This reverts commit 278cb45f.

Reason for revert:

Findit (https://goo.gl/kROfz5) identified CL at revision 811094 as the
culprit for failures in the build cycles as shown on:
https://analysis.chromium.org/waterfall/culprit?key=ag9zfmZpbmRpdC1mb3ItbWVyRAsSDVdmU3VzcGVjdGVkQ0wiMWNocm9taXVtLzI3OGNiNDVmZDcxNzBjMGYzYWZhMGQ4ZGExYzRjYzRmOWU0YzkzZTgM

Sample Failed Build: https://ci.chromium.org/b/8867949354369276768

Sample Failed Step: compile

Original change's description:
> Video Tutorials: Added video player UI
> 
> This CL adds the video player UI.
> 1 - Added VideoPlayerActivity at chrome layer, which creates
> VideoPlayerCoordinator and passes a WebContent supplier in order to
> create ThinWebView.
> 2 - Added video player MVC, the mediator handles display logic between
> loading screen, controls, thinwebview, and language picker.
> It also handles callbacks for control buttons, and observes media
> session through a PlaybackStateObserver.
> 
> TODO :
> Add screenshot. Add UI polish. Define share/watchnext behavior.
> Polish media session logic.
> 
> Bug: 1117172
> Binary-Size: Unavoidable method count increase (includes methods from previous CL).
> Change-Id: Ide7c0d7bf4fa20a9bfbe0c10717e6983d0da88dc
> Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2415672
> Commit-Queue: Shakti Sahu <shaktisahu@chromium.org>
> Reviewed-by: David Trainor <dtrainor@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#811094}


Change-Id: I8de44b83196ee7ac90090f2c6d765a9aa3429430
No-Presubmit: true
No-Tree-Checks: true
No-Try: true
Bug: 1117172
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2434557
Cr-Commit-Position: refs/heads/master@{#811099}