Make additional code paths go through GrDrawState helper classes for their matrix manipulations.

R=robertphillips@google.com
Review URL: https://codereview.appspot.com/6615064

git-svn-id: http://skia.googlecode.com/svn/trunk@5856 2bbb7eff-a529-9590-31e7-b0007b416f81
3 files changed