Revert "media/gpu/VEA unittest: Test DMABuf-backed input buffers"

This reverts commit c4e9ae1b9abc167c177d659dbcc3d1f794e93064.

Reason for revert:

Findit (https://goo.gl/kROfz5) identified CL at revision 606788 as the
culprit for failures in the build cycles as shown on:
https://findit-for-me.appspot.com/waterfall/culprit?key=ag9zfmZpbmRpdC1mb3ItbWVyRAsSDVdmU3VzcGVjdGVkQ0wiMWNocm9taXVtL2M0ZTlhZTFiOWFiYzE2N2MxNzdkNjU5ZGJjYzNkMWY3OTRlOTMwNjQM

Sample Failed Build: https://ci.chromium.org/buildbot/chromium/win32-rel/5951

Sample Failed Step: compile

Original change's description:
> media/gpu/VEA unittest: Test DMABuf-backed input buffers
> 
> This adds the command line option, --natvie_input, that VEA unittest passes
> DMABuf-backed video frame to VEA.
> DMABufs are obtained by gbm though NativePixmap. To create NativePixmap on
> Chrome OS, it needs to set up Ozone environment properly. Therefore, this change
> also makes VEA unittest dependent on Ozone.
> 
> BUG=chromium:895230
> TEST=VEA unittest on eve w/wo --native_input
> 
> Change-Id: I67526a1b6b6cf1ae74a96000ec2af14995dbd4fc
> Reviewed-on: https://chromium-review.googlesource.com/c/1295636
> Commit-Queue: Hirokazu Honda <hiroh@chromium.org>
> Reviewed-by: Pawel Osciak <posciak@chromium.org>
> Cr-Commit-Position: refs/heads/master@{#606788}

No-Presubmit: true
No-Tree-Checks: true
No-Try: true
BUG=chromium:895230

Change-Id: I75c80e914ec2493c26b34ddb4644e53099ba6bf5
Reviewed-on: https://chromium-review.googlesource.com/c/1328713
Cr-Commit-Position: refs/heads/master@{#606796}
13 files changed