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

src/gpu/batches/GrRectBatchFactory.cpp

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrRectBatchFactory.h"
 
 #include "GrAAStrokeRectBatch.h"
 
 #include "SkStrokeRec.h"
 
 namespace GrRectBatchFactory {
 
 GrDrawBatch* CreateAAFillNestedRects(GrColor color,
                                      const SkMatrix& viewMatrix,
                                      const SkRect rects[2]) {
     SkASSERT(viewMatrix.rectStaysRect());
     SkASSERT(!rects[0].isEmpty() && !rects[1].isEmpty());
 
     SkRect devOutside, devInside;
     viewMatrix.mapRect(&devOutside, rects[0]);
     viewMatrix.mapRect(&devInside, rects[1]);
+    if (devInside.isEmpty()) {
+        if (devOutside.isEmpty()) {
+            return nullptr;
+        }
+        return GrAAFillRectBatch::Create(color, viewMatrix, devOutside, devOutside);
+    }
 
-    return GrAAStrokeRectBatch::Create(color, viewMatrix, devOutside, devOutside, devInside, true,
-                                       devInside.isEmpty());
+    return GrAAStrokeRectBatch::CreateFillBetweenRects(color, viewMatrix, devOutside, devInside);
 }
 
 };