added support for PLS path rendering

src/gpu/batches/GrNinePatch.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 "GrNinePatch.h"
 
 #include "GrBatchFlushState.h"
@@ skipping 61 matching lines @@
 
         str.append(INHERITED::dumpInfo());
         return str;
     }
 
     void computePipelineOptimizations(GrInitInvariantOutput* color, 
                                       GrInitInvariantOutput* coverage,
                                       GrBatchToXPOverrides* overrides) const override {
         color->setUnknownFourComponents();
         coverage->setKnownSingleComponent(0xff);
-        overrides->fUsePLSDstRead = false;
     }
 
     SkSTArray<1, Geometry, true>* geoData() { return &fGeoData; }
 
 private:
     void onPrepareDraws(Target* target) const override {
         SkAutoTUnref<const GrGeometryProcessor> gp(create_gp(fOverrides.readsCoverage()));
         if (!gp) {
             SkDebugf("Couldn't create GrGeometryProcessor\n");
             return;
@@ skipping 82 matching lines @@
 
     typedef GrVertexBatch INHERITED;
 };
 
 namespace GrNinePatch {
 GrDrawBatch* CreateNonAA(GrColor color, const SkMatrix& viewMatrix, int imageWidth, int imageHeight,
                          const SkIRect& center, const SkRect& dst) {
     return new GrNonAANinePatchBatch(color, viewMatrix, imageWidth, imageHeight, center, dst);
 }
 };