Fix leak of path ranges

src/gpu/batches/GrDrawPathBatch.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 GrDrawPathBatch_DEFINED
 #define GrDrawPathBatch_DEFINED
 
@@ skipping 98 matching lines @@
     const uint16_t* indices() const { return fIndices.begin(); }
 
     const GrPathRange* range() const { return fPathRange.get(); }
 
     static bool CanMerge(const GrPathRangeDraw& a, const GrPathRangeDraw& b) {
         return a.transformType() == b.transformType() && a.range() == b.range();
     }
 
 private:
     GrPathRangeDraw(GrPathRange* range, TransformType transformType, int reserveCnt)
-        : fPathRange(SkRef(range))
+        : fPathRange(range)
         , fTransformType(transformType)
         , fIndices(reserveCnt)
         , fTransforms(reserveCnt * GrPathRendering::PathTransformSize(transformType)) {
         SkDEBUGCODE(fUsedInBatch = false;)
     }
 
     // Reserve space for 64 paths where indices are 16 bit and transforms are translations.
     static const int kIndexReserveCnt = 64;
     static const int kTransformBufferReserveCnt = 2 * 64;
 
@@ skipping 38 matching lines @@
     void onDraw(GrBatchFlushState* state) override;
 
     typedef SkTLList<GrPathRangeDraw*> DrawList;
     DrawList    fDraws;
     int         fTotalPathCount;
 
     typedef GrDrawPathBatchBase INHERITED;
 };
 
 #endif