Libvpx roll.

See https://codereview.chromium.org/24400005/

for the actual changes.

BUG=297123
R=tomfinegan@chromium.org

Review URL: https://codereview.chromium.org/24227012

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@225005 0039d316-1c4b-4281-b951-d872f2087c98
Update .DEPS.git

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@225006 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 225005
SVN changes up to revision 225006
Fix a UAF defect on SocketStream.

SocketStream::Finish must be called exactly once for a connected SocketStream.
But if its context_ member is NULL Finish will be called multiple times.
The calls confuse the SocketStream refcounter and lead to a UAF crash.

This CL fixes the defect.

R=tyoshino
BUG=290957

Review URL: https://chromiumcodereview.appspot.com/23496078

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@225007 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 225007