Update XPF invariant info to not account for conflation

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 "GrBatch.h"
@@ skipping 105 matching lines @@
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 
 GrPipelineBuilder::~GrPipelineBuilder() {
     SkASSERT(0 == fBlockEffectRemovalCnt);
 }
 
 ////////////////////////////////////////////////////////////////////////////////
 
-bool GrPipelineBuilder::willBlendWithDst(const GrPrimitiveProcessor* pp) const {
+bool GrPipelineBuilder::willColorBlendWithDst(const GrPrimitiveProcessor* pp) const {
     this->calcColorInvariantOutput(pp);
-    this->calcCoverageInvariantOutput(pp);
     
-    GrXPFactory::InvariantOutput output;
-    fXPFactory->getInvariantOutput(fColorProcInfo, fCoverageProcInfo, &output);
-    return output.fWillBlendWithDst;
+    GrXPFactory::InvariantBlendedColor blendedColor;
+    fXPFactory->getInvariantBlendedColor(fColorProcInfo, &blendedColor);
+    return blendedColor.fWillBlendWithDst;
 }
 
 void GrPipelineBuilder::calcColorInvariantOutput(const GrPrimitiveProcessor* pp) const {
     fColorProcInfo.calcColorWithPrimProc(pp, fColorStages.begin(), this->numColorFragmentStages());
     fColorProcInfoValid = false;
 
 }
 
 void GrPipelineBuilder::calcCoverageInvariantOutput(const GrPrimitiveProcessor* pp) const {
     fCoverageProcInfo.calcCoverageWithPrimProc(pp, fCoverageStages.begin(),
@@ skipping 26 matching lines @@
 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;
     }
 }