GPU implementation of drawArc.

src/gpu/GrOvalRenderer.h

Index: src/gpu/GrOvalRenderer.h
diff --git a/src/gpu/GrOvalRenderer.h b/src/gpu/GrOvalRenderer.h
index 66182b24e8cff5998481883eb12d1d4bebdb7db7..c4ea4968d781ce0e11a341e0817128f2247b00be 100644
--- a/src/gpu/GrOvalRenderer.h
+++ b/src/gpu/GrOvalRenderer.h
@@ -12,6 +12,7 @@
 
 class GrDrawBatch;
 class GrShaderCaps;
+class GrStyle;
 class SkMatrix;
 struct SkRect;
 class SkRRect;
@@ -26,15 +27,21 @@ public:
                                         const SkMatrix& viewMatrix,
                                         const SkRect& oval,
                                         const SkStrokeRec& stroke,
-                                        GrShaderCaps* shaderCaps);
+                                        const GrShaderCaps* shaderCaps);
     static GrDrawBatch* CreateRRectBatch(GrColor,
                                          const SkMatrix& viewMatrix,
                                          const SkRRect& rrect,
                                          const SkStrokeRec& stroke,
-                                         GrShaderCaps* shaderCaps);
+                                         const GrShaderCaps* shaderCaps);
 
-private:
-    GrOvalRenderer();
+    static GrDrawBatch* CreateArcBatch(GrColor,
+                                       const SkMatrix& viewMatrix,
+                                       const SkRect& oval,
+                                       SkScalar startAngle,
+                                       SkScalar sweepAngle,
+                                       bool useCenter,
+                                       const GrStyle&,
+                                       const GrShaderCaps* shaderCaps);
 };
 
 #endif // GrOvalRenderer_DEFINED