Move glsl onto EmitArgs struct for emitCode

src/gpu/glsl/GrGLSLXferProcessor.h

 /*
  * Copyright 2015 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrGLSLXferProcessor_DEFINED
 #define GrGLSLXferProcessor_DEFINED
 
 #include "glsl/GrGLSLProgramDataManager.h"
 #include "glsl/GrGLSLTextureSampler.h"
 
+class GrXferProcessor;
+class GrGLSLXPBuilder;
 class GrGLSLXPFragmentBuilder;
-class GrGLSLXPBuilder;
-class GrXferProcessor;
+class GrGLSLCaps;
 
 class GrGLSLXferProcessor {
 public:
     GrGLSLXferProcessor() {}
     virtual ~GrGLSLXferProcessor() {}
 
     typedef GrGLSLTextureSampler::TextureSamplerArray TextureSamplerArray;
     struct EmitArgs {
         EmitArgs(GrGLSLXPBuilder* pb,
                  GrGLSLXPFragmentBuilder* fragBuilder,
+                 const GrGLSLCaps* caps,
                  const GrXferProcessor& xp,
                  const char* inputColor,
                  const char* inputCoverage,
                  const char* outputPrimary,
                  const char* outputSecondary,
                  const TextureSamplerArray& samplers)
             : fPB(pb)
             , fXPFragBuilder(fragBuilder)
+            , fGLSLCaps(caps)
             , fXP(xp)
             , fInputColor(inputColor)
             , fInputCoverage(inputCoverage)
             , fOutputPrimary(outputPrimary)
             , fOutputSecondary(outputSecondary)
             , fSamplers(samplers) {}
 
         GrGLSLXPBuilder* fPB;
         GrGLSLXPFragmentBuilder* fXPFragBuilder;
+        const GrGLSLCaps* fGLSLCaps;
         const GrXferProcessor& fXP;
         const char* fInputColor;
         const char* fInputCoverage;
         const char* fOutputPrimary;
         const char* fOutputSecondary;
         const TextureSamplerArray& fSamplers;
     };
     /**
      * This is similar to emitCode() in the base class, except it takes a full shader builder.
      * This allows the effect subclass to emit vertex code.
@@ skipping 32 matching lines @@
                                          const GrXferProcessor&) {
         SkFAIL("emitBlendCodeForDstRead not implemented.");
     }
 
     virtual void onSetData(const GrGLSLProgramDataManager&, const GrXferProcessor&) = 0;
 
     GrGLSLProgramDataManager::UniformHandle fDstTopLeftUni;
     GrGLSLProgramDataManager::UniformHandle fDstScaleUni;
 };
 #endif