Roll Skia DEPS to r11593

R=reed@google.com

Review URL: https://codereview.chromium.org/25724011

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@226996 0039d316-1c4b-4281-b951-d872f2087c98
Update .DEPS.git

git-svn-id: svn://svn.chromium.org/chrome/trunk/src@226997 0039d316-1c4b-4281-b951-d872f2087c98
SVN changes up to revision 226996
SVN changes up to revision 226997