added support for PLS path rendering

src/gpu/batches/GrDrawVerticesBatch.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 "GrDrawVerticesBatch.h"
 
 #include "GrBatchFlushState.h"
@@ skipping 57 matching lines @@
 void GrDrawVerticesBatch::computePipelineOptimizations(GrInitInvariantOutput* color, 
                                                        GrInitInvariantOutput* coverage,
                                                        GrBatchToXPOverrides* overrides) const {
     // When this is called on a batch, there is only one geometry bundle
     if (fVariableColor) {
         color->setUnknownFourComponents();
     } else {
         color->setKnownFourComponents(fGeoData[0].fColor);
     }
     coverage->setKnownSingleComponent(0xff);
-    overrides->fUsePLSDstRead = false;
 }
 
 void GrDrawVerticesBatch::initBatchTracker(const GrXPOverridesForBatch& overrides) {
     SkASSERT(fGeoData.count() == 1);
     GrColor overrideColor;
     if (overrides.getOverrideColorIfSet(&overrideColor)) {
         fGeoData[0].fColor = overrideColor;
         fGeoData[0].fColors.reset();
         fVariableColor = false;
     }
@@ skipping 229 matching lines @@
     geometry.fColor = GrRandomColor(random);
     return GrDrawVerticesBatch::Create(geometry, type, viewMatrix,
                                        positions.begin(), vertexCount,
                                        indices.begin(), hasIndices ? vertexCount : 0,
                                        colors.begin(),
                                        texCoords.begin(),
                                        bounds);
 }
 
 #endif