When filling nested rect path check for empty inner and empty outer rects

src/gpu/batches/GrAAStrokeRectBatch.h

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrAAStrokeRectBatch_DEFINED
 #define GrAAStrokeRectBatch_DEFINED
 
 #include "GrColor.h"
 
 class GrBatch;
 class GrDrawBatch;
 class GrResourceProvider;
 class SkMatrix;
 struct SkRect;
 class SkStrokeRec;
 
 namespace GrAAStrokeRectBatch {
 
-GrDrawBatch* Create(GrColor color,
-                    const SkMatrix& viewMatrix,
-                    const SkRect& devOutside,
-                    const SkRect& devOutsideAssist,
-                    const SkRect& devInside,
-                    bool miterStroke,
-                    bool degenerate);
+GrDrawBatch* CreateFillBetweenRects(GrColor color,
+                                    const SkMatrix& viewMatrix,
+                                    const SkRect& devOutside,
+                                    const SkRect& devInside);
 
 GrDrawBatch* Create(GrColor color,
                     const SkMatrix& viewMatrix,
                     const SkRect& rect,
                     const SkStrokeRec& stroke);
 
 bool Append(GrBatch*,
             GrColor color,
             const SkMatrix& viewMatrix,
             const SkRect& rect,
             const SkStrokeRec& stroke);
 
 };
 
 #endif