Revert 268964 "Roll libvpx 268125:268821"
Broke compile:
http://build.chromium.org/p/chromium.win/builders/Win%20x64%20Builder/builds/18304
> Roll libvpx 268125:268821
>
> See https://codereview.chromium.org/
267263007/
> for the actual changes.
>
> BUG=370959
> R=tomfinegan@chromium.org
>
> Review URL: https://codereview.chromium.org/
275433005
TBR=fgalligan@chromium.org
Review URL: https://codereview.chromium.org/
270773002
git-svn-id: svn://svn.chromium.org/chrome/trunk/src@268972 0039d316-1c4b-4281-b951-d872f2087c98