Added gpu AA clipping to old shader path

http://codereview.appspot.com/6139065/



git-svn-id: http://skia.googlecode.com/svn/trunk@3812 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/src/gpu/GrDrawState.h b/src/gpu/GrDrawState.h
index cf2b63a..fee22bf 100644
--- a/src/gpu/GrDrawState.h
+++ b/src/gpu/GrDrawState.h
@@ -331,7 +331,7 @@
     ////
 
     /**
-     * Sets the matrix applied to veretx positions.
+     * Sets the matrix applied to vertex positions.
      *
      * In the post-view-matrix space the rectangle [0,w]x[0,h]
      * fully covers the render target. (w and h are the width and height of the