Move GLSL-specific routines/classes to separate glsl directory

src/gpu/effects/GrDistanceFieldGeoProc.cpp

 /*
  * Copyright 2013 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #include "GrDistanceFieldGeoProc.h"
 #include "GrFontAtlasSizes.h"
 #include "GrInvariantOutput.h"
 #include "GrTexture.h"
 
 #include "SkDistanceFieldGen.h"
 
 #include "gl/GrGLProcessor.h"
-#include "gl/GrGLSL.h"
 #include "gl/GrGLTexture.h"
 #include "gl/GrGLGeometryProcessor.h"
 #include "gl/builders/GrGLProgramBuilder.h"
 
 // Assuming a radius of a little less than the diagonal of the fragment
 #define SK_DistanceFieldAAFactor     "0.65"
 
 class GrGLDistanceFieldA8TextGeoProc : public GrGLGeometryProcessor {
 public:
     GrGLDistanceFieldA8TextGeoProc(const GrGeometryProcessor&,
@@ skipping 720 matching lines @@
     uint32_t flags = kUseLCD_DistanceFieldEffectFlag;
     flags |= random->nextBool() ? kUniformScale_DistanceFieldEffectMask : 0;
     flags |= random->nextBool() ? kBGR_DistanceFieldEffectFlag : 0;
     return GrDistanceFieldLCDTextGeoProc::Create(GrRandomColor(random),
                                                  GrTest::TestMatrix(random),
                                                  textures[texIdx], params,
                                                  wa,
                                                  flags,
                                                  random->nextBool());
 }