Roll Skia DEPS to r12182

R=rmistry@google.com

Review URL: https://codereview.chromium.org/64733003

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@233898 0039d316-1c4b-4281-b951-d872f2087c98
Update .DEPS.git

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@233899 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 233898
SVN changes up to revision 233899