Replace fWillReadFragmentPosition with a bitfield

src/gpu/batches/GrPLSPathRenderer.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 "GrPLSPathRenderer.h"
 
 #include "SkChunkAlloc.h"
@@ skipping 412 matching lines @@
         fInPosition = &this->addVertexAttrib(Attribute("inPosition", kVec2f_GrVertexAttribType, 
                                                        kHigh_GrSLPrecision));
         fInVertex1 = &this->addVertexAttrib(Attribute("inVertex1", kVec2f_GrVertexAttribType, 
                                                       kHigh_GrSLPrecision));
         fInVertex2 = &this->addVertexAttrib(Attribute("inVertex2", kVec2f_GrVertexAttribType, 
                                                       kHigh_GrSLPrecision));
         fInVertex3 = &this->addVertexAttrib(Attribute("inVertex3", kVec2f_GrVertexAttribType, 
                                                       kHigh_GrSLPrecision));
         fInWindings = &this->addVertexAttrib(Attribute("inWindings", kInt_GrVertexAttribType, 
                                                        kLow_GrSLPrecision));
-        this->setWillReadFragmentPosition();
+        this->enableBuiltInState(kFragmentPosition_BuiltInState);
     }
 
     const Attribute* fInPosition;
     const Attribute* fInVertex1;
     const Attribute* fInVertex2;
     const Attribute* fInVertex3;
     const Attribute* fInWindings;
     SkMatrix         fLocalMatrix;
     bool             fUsesLocalCoords;
     
@@ skipping 168 matching lines @@
         fInPosition = &this->addVertexAttrib(Attribute("inPosition", kVec2f_GrVertexAttribType, 
                                                        kHigh_GrSLPrecision));
         fInUV = &this->addVertexAttrib(Attribute("inUV", kVec2f_GrVertexAttribType, 
                                                  kHigh_GrSLPrecision));
         fInEndpoint1 = &this->addVertexAttrib(Attribute("inEndpoint1", kVec2f_GrVertexAttribType, 
                                                         kHigh_GrSLPrecision));
         fInEndpoint2 = &this->addVertexAttrib(Attribute("inEndpoint2", kVec2f_GrVertexAttribType, 
                                                         kHigh_GrSLPrecision));
         fInWindings  = &this->addVertexAttrib(Attribute("inWindings", kInt_GrVertexAttribType, 
                                                         kLow_GrSLPrecision));
-        this->setWillReadFragmentPosition();
+        this->enableBuiltInState(kFragmentPosition_BuiltInState);
     }
 
     const Attribute* fInPosition;
     const Attribute* fInUV;
     const Attribute* fInEndpoint1;
     const Attribute* fInEndpoint2;
     const Attribute* fInWindings;
     SkMatrix         fLocalMatrix;
     bool             fUsesLocalCoords;
     
@@ skipping 369 matching lines @@
 DRAW_BATCH_TEST_DEFINE(PLSPathBatch) {
     PLSPathBatch::Geometry geometry;
     geometry.fColor = GrRandomColor(random);
     geometry.fViewMatrix = GrTest::TestMatrixInvertible(random);
     geometry.fPath = GrTest::TestPathConvex(random);
 
     return PLSPathBatch::Create(geometry);
 }
 
 #endif