Move loops that chain together effects into GrGLShaderBuilder from GrGLProgram.

src/gpu/gl/GrGLProgramDesc.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 GrGLProgramDesc_DEFINED
 #define GrGLProgramDesc_DEFINED
 
@@ skipping 21 matching lines @@
 
     // Returns this as a uint32_t array to be used as a key in the program cache
     const uint32_t* asKey() const {
         return reinterpret_cast<const uint32_t*>(this);
     }
 
     // For unit testing.
     void setRandom(SkMWCRandom*,
                    const GrGpuGL* gpu,
                    const GrTexture* dummyDstTexture,
-                   const GrEffectStage stages[GrDrawState::kNumStages],
+                   const GrEffectStage* stages[GrDrawState::kNumStages],
                    int currAttribIndex);
 
     /**
      * Builds a program descriptor from a GrDrawState. Whether the primitive type is points, the
      * output of GrDrawState::getBlendOpts, and the caps of the GrGpuGL are also inputs.
      */
     static void Build(const GrDrawState&,
                       bool isPoints,
                       GrDrawState::BlendOptFlags,
                       GrBlendCoeff srcCoeff,
@@ skipping 72 matching lines @@
     int8_t                      fColorAttributeIndex;
     int8_t                      fCoverageAttributeIndex;
 
     // GrGLProgram and GrGLShaderBuilder read the private fields to generate code. TODO: Move all
     // code generation to GrGLShaderBuilder (and maybe add getters rather than friending).
     friend class GrGLProgram;
     friend class GrGLShaderBuilder;
 };
 
 #endif