Create GrGLSLVaryingHandler class for program building

src/gpu/glsl/GrGLSLPrimitiveProcessor.h

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrGLSLPrimitiveProcessor_DEFINED
 #define GrGLSLPrimitiveProcessor_DEFINED
 
 #include "GrPrimitiveProcessor.h"
 #include "glsl/GrGLSLProcessorTypes.h"
 #include "glsl/GrGLSLProgramDataManager.h"
 #include "glsl/GrGLSLTextureSampler.h"
 
 class GrBatchTracker;
 class GrPrimitiveProcessor;
 class GrGLSLCaps;
 class GrGLSLFragmentBuilder;
 class GrGLSLGPBuilder;
+class GrGLSLVaryingHandler;
 class GrGLSLVertexBuilder;
 
 class GrGLSLPrimitiveProcessor {
 public:
     virtual ~GrGLSLPrimitiveProcessor() {}
 
     typedef GrGLSLProgramDataManager::UniformHandle UniformHandle;
     typedef GrGLSLTextureSampler::TextureSamplerArray TextureSamplerArray;
 
     typedef SkSTArray<2, const GrCoordTransform*, true> ProcCoords;
     typedef SkSTArray<8, ProcCoords> TransformsIn;
     typedef SkSTArray<8, GrGLSLTransformedCoordsArray> TransformsOut;
 
     struct EmitArgs {
         EmitArgs(GrGLSLGPBuilder* pb,
                  GrGLSLVertexBuilder* vertBuilder,
                  GrGLSLFragmentBuilder* fragBuilder,
+                 GrGLSLVaryingHandler* varyingHandler,
                  const GrGLSLCaps* caps,
                  const GrPrimitiveProcessor& gp,
                  const char* outputColor,
                  const char* outputCoverage,
                  const TextureSamplerArray& samplers,
                  const TransformsIn& transformsIn,
                  TransformsOut* transformsOut)
             : fPB(pb)
             , fVertBuilder(vertBuilder)
             , fFragBuilder(fragBuilder)
+            , fVaryingHandler(varyingHandler)
             , fGLSLCaps(caps)
             , fGP(gp)
             , fOutputColor(outputColor)
             , fOutputCoverage(outputCoverage)
             , fSamplers(samplers)
             , fTransformsIn(transformsIn)
             , fTransformsOut(transformsOut) {}
         GrGLSLGPBuilder* fPB;
         GrGLSLVertexBuilder* fVertBuilder;
         GrGLSLFragmentBuilder* fFragBuilder;
+        GrGLSLVaryingHandler* fVaryingHandler;
         const GrGLSLCaps* fGLSLCaps;
         const GrPrimitiveProcessor& fGP;
         const char* fOutputColor;
         const char* fOutputCoverage;
         const TextureSamplerArray& fSamplers;
         const TransformsIn& fTransformsIn;
         TransformsOut* fTransformsOut;
     };
 
     /**
@@ skipping 28 matching lines @@
         Transform() : fType(kVoid_GrSLType) { fCurrentValue = SkMatrix::InvalidMatrix(); }
         UniformHandle  fHandle;
         SkMatrix       fCurrentValue;
         GrSLType       fType;
     };
 
     SkSTArray<8, SkSTArray<2, Transform, true> > fInstalledTransforms;
 };
 
 #endif