Revert "Fix animation jankiness after selecting the current NTP in Android tab switcher"

This reverts commit 734d2825be76c8b605a03cb55e5739905cc2622f.

Reason for revert: The CL this CL was fixing was already revertedand looks like this is causing other regressions.

Original change's description:
> Fix animation jankiness after selecting the current NTP in Android tab switcher
>
> If you open an NTP on Android, open the tab switcher, and then focus the NTP,
> there is often some jankiness at the end of the animation where the page very
> quickly appears to jump back-and-forth by a few pixels.
>
> It turns out that this happens when we switch from TabListSceneLayer (what we
> use to display the tab switcher) to StaticTabSceneLayer (what we use to show
> the tab during normal browsing): for the NTP, we never use the live layer in
> the tab switcher, so we have to use the static layer. When we switch to
> StaticTabSceneLayer, it (sometimes?) still uses the static layer very briefly,
> but displays it at not quite the right size, which causes the jumpiness before
> we switch back to the live layer.
>
> The fix is to make ContentLayer clip the static layer to the value of
> ComputedSize() in the case where should_clip == false.
>
> Bug: 748648
> Change-Id: I2999ee1be91681d692e381a9aff230567ace20fc
> Reviewed-on: https://chromium-review.googlesource.com/1114349
> Reviewed-by: David Trainor <dtrainor@chromium.org>
> Commit-Queue: Ryan Landay <rlanday@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#570974}

TBR=dtrainor@chromium.org,rlanday@chromium.org

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

Bug: 748648,  867868, 865395
Change-Id: I9f092f7906a3b2d96480e3a797292d96dda22074
Reviewed-on: https://chromium-review.googlesource.com/1151568
Reviewed-by: David Trainor <dtrainor@chromium.org>
Reviewed-by: Yusuf Ozuysal <yusufo@chromium.org>
Commit-Queue: Yusuf Ozuysal <yusufo@chromium.org>
Cr-Commit-Position: refs/heads/master@{#579857}
1 file changed