Introduce GrBatch subclasses GrDrawBatch and GrVertexBatch to prepare for non-drawing batches

src/gpu/GrPipelineBuilder.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 "GrPipelineBuilder.h"
 
 #include "GrBlend.h"
@@ skipping 127 matching lines @@
     fColorProcInfoValid = false;
 
 }
 
 void GrPipelineBuilder::calcCoverageInvariantOutput(const GrPrimitiveProcessor* pp) const {
     fCoverageProcInfo.calcCoverageWithPrimProc(pp, fCoverageStages.begin(),
                                                this->numCoverageFragmentStages());
     fCoverageProcInfoValid = false;
 }
 
-void GrPipelineBuilder::calcColorInvariantOutput(const GrBatch* batch) const {
+void GrPipelineBuilder::calcColorInvariantOutput(const GrDrawBatch* batch) const {
     fColorProcInfo.calcColorWithBatch(batch, fColorStages.begin(), this->numColorFragmentStages());
     fColorProcInfoValid = false;
 }
 
-void GrPipelineBuilder::calcCoverageInvariantOutput(const GrBatch* batch) const {
+void GrPipelineBuilder::calcCoverageInvariantOutput(const GrDrawBatch* batch) const {
     fCoverageProcInfo.calcCoverageWithBatch(batch, fCoverageStages.begin(),
                                             this->numCoverageFragmentStages());
     fCoverageProcInfoValid = false;
 }
 
 
 void GrPipelineBuilder::calcColorInvariantOutput(GrColor color) const {
     if (!fColorProcInfoValid || color != fColorCache) {
         GrColorComponentFlags flags = kRGBA_GrColorComponentFlags;
         fColorProcInfo.calcWithInitialValues(fColorStages.begin(),this->numColorFragmentStages(),
                                              color, flags, false);
         fColorProcInfoValid = true;
         fColorCache = color;
     }
 }
 
 void GrPipelineBuilder::calcCoverageInvariantOutput(GrColor coverage) const {
     if (!fCoverageProcInfoValid || coverage != fCoverageCache) {
         GrColorComponentFlags flags = kRGBA_GrColorComponentFlags;
         fCoverageProcInfo.calcWithInitialValues(fCoverageStages.begin(),
                                                 this->numCoverageFragmentStages(), coverage, flags,
                                                 true);
         fCoverageProcInfoValid = true;
         fCoverageCache = coverage;
     }
 }