Move GLSL-specific routines/classes to separate glsl directory

src/gpu/effects/GrConstColorProcessor.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 "effects/GrConstColorProcessor.h"
 #include "gl/GrGLProcessor.h"
-#include "gl/GrGLSL.h"
 #include "gl/builders/GrGLProgramBuilder.h"
 
 class GLConstColorProcessor : public GrGLFragmentProcessor {
 public:
     GLConstColorProcessor() : fPrevColor(GrColor_ILLEGAL) {}
 
     void emitCode(GrGLFPBuilder* builder,
                   const GrFragmentProcessor& fp,
                   const char* outputColor,
                   const char* inputColor,
@@ skipping 103 matching lines @@
             color = 0;
             break;
         case 2:
             color = random->nextULessThan(0x100);
             color = color | (color << 8) | (color << 16) | (color << 24);
             break;
     }
     InputMode mode = static_cast<InputMode>(random->nextULessThan(kInputModeCnt));
     return GrConstColorProcessor::Create(color, mode);
 }