Add device-independent rendering of ovals, take two.

This permits GPU support for arbitrary matrices. The only exception is 
not all stroked ovals are supported, as thin ovals + fat strokes do not
produce elliptical borders.

R=bsalomon@google.com, robertphillips@google.com

Author: jvanverth@google.com

Review URL: https://chromiumcodereview.appspot.com/23701013

git-svn-id: http://skia.googlecode.com/svn/trunk/include@11115 2bbb7eff-a529-9590-31e7-b0007b416f81
1 file changed