Add device-independent rendering of ovals, take two.

include/gpu/GrOvalRenderer.h

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrOvalRenderer_DEFINED
 #define GrOvalRenderer_DEFINED
 
@@ skipping 23 matching lines @@
 
     bool drawOval(GrDrawTarget* target, const GrContext* context, bool useAA,
                   const SkRect& oval, const SkStrokeRec& stroke);
     bool drawSimpleRRect(GrDrawTarget* target, GrContext* context, bool useAA,
                          const SkRRect& rrect, const SkStrokeRec& stroke);
 
 private:
     bool drawEllipse(GrDrawTarget* target, bool useAA,
                      const SkRect& ellipse,
                      const SkStrokeRec& stroke);
+    bool drawDIEllipse(GrDrawTarget* target, bool useAA,
+                       const SkRect& ellipse,
+                       const SkStrokeRec& stroke);
     void drawCircle(GrDrawTarget* target, bool useAA,
                     const SkRect& circle,
                     const SkStrokeRec& stroke);
 
     GrIndexBuffer* rRectIndexBuffer(GrGpu* gpu);
 
     GrIndexBuffer* fRRectIndexBuffer;
 
     typedef GrRefCnt INHERITED;
 };
 
 #endif // GrOvalRenderer_DEFINED