Remove hasMixedSamples() from GrPipelineBuilder

src/gpu/GrXferProcessor.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 "GrXferProcessor.h"
 #include "GrPipeline.h"
 #include "GrPipelineBuilder.h"
@@ skipping 179 matching lines @@
 }
 #endif
 
 ///////////////////////////////////////////////////////////////////////////////
 
 GrXferProcessor* GrXPFactory::createXferProcessor(const GrPipelineOptimizations& optimizations,
                                                   bool hasMixedSamples,
                                                   const DstTexture* dstTexture,
                                                   const GrCaps& caps) const {
 #ifdef SK_DEBUG
-    if (this->willReadDstColor(caps, optimizations, hasMixedSamples)) {
+    if (this->willReadDstColor(caps, optimizations)) {
         if (!caps.shaderCaps()->dstReadInShaderSupport()) {
             SkASSERT(dstTexture && dstTexture->texture());
         } else {
             SkASSERT(!dstTexture || !dstTexture->texture());
         }
     } else {
         SkASSERT(!dstTexture || !dstTexture->texture());
     }
     SkASSERT(!hasMixedSamples || caps.shaderCaps()->dualSourceBlendingSupport());
 #endif
     return this->onCreateXferProcessor(caps, optimizations, hasMixedSamples, dstTexture);
 }
 
 bool GrXPFactory::willNeedDstTexture(const GrCaps& caps,
-                                     const GrPipelineOptimizations& optimizations,
-                                     bool hasMixedSamples) const {
-    return (this->willReadDstColor(caps, optimizations, hasMixedSamples) &&
+                                     const GrPipelineOptimizations& optimizations) const {
+    return (this->willReadDstColor(caps, optimizations) &&
             !caps.shaderCaps()->dstReadInShaderSupport());
 }
 
 bool GrXPFactory::willReadDstColor(const GrCaps& caps,
-                                   const GrPipelineOptimizations& optimizations,
-                                   bool hasMixedSamples) const {
-    return optimizations.fOverrides.fUsePLSDstRead || this->onWillReadDstColor(caps, optimizations,
-                                                                               hasMixedSamples);
+                                   const GrPipelineOptimizations& optimizations) const {
+    return optimizations.fOverrides.fUsePLSDstRead || this->onWillReadDstColor(caps, optimizations);
 }