Roll WebGL conformance tests to r226612 to pick up bug fix.

BUG=225939
R=zmo@chromium.org

Review URL: https://codereview.chromium.org/25813003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@226630 0039d316-1c4b-4281-b951-d872f2087c98
Update .DEPS.git

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@226631 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 226630
SVN changes up to revision 226631