Move all ShaderBuilder files to GLSL

BUG=skia:

Review URL: https://codereview.chromium.org/1438003003
diff --git a/src/gpu/effects/GrBicubicEffect.cpp b/src/gpu/effects/GrBicubicEffect.cpp
index a6ed190..2857641 100644
--- a/src/gpu/effects/GrBicubicEffect.cpp
+++ b/src/gpu/effects/GrBicubicEffect.cpp
@@ -7,7 +7,8 @@
 
 #include "GrBicubicEffect.h"
 #include "GrInvariantOutput.h"
-#include "gl/builders/GrGLProgramBuilder.h"
+#include "glsl/GrGLSLFragmentShaderBuilder.h"
+#include "glsl/GrGLSLProgramBuilder.h"
 #include "glsl/GrGLSLProgramDataManager.h"
 
 #define DS(x) SkDoubleToScalar(x)
@@ -51,10 +52,10 @@
 void GrGLBicubicEffect::emitCode(EmitArgs& args) {
     const GrTextureDomain& domain = args.fFp.cast<GrBicubicEffect>().domain();
 
-    fCoefficientsUni = args.fBuilder->addUniform(GrGLProgramBuilder::kFragment_Visibility,
+    fCoefficientsUni = args.fBuilder->addUniform(GrGLSLProgramBuilder::kFragment_Visibility,
                                            kMat44f_GrSLType, kDefault_GrSLPrecision,
                                            "Coefficients");
-    fImageIncrementUni = args.fBuilder->addUniform(GrGLProgramBuilder::kFragment_Visibility,
+    fImageIncrementUni = args.fBuilder->addUniform(GrGLSLProgramBuilder::kFragment_Visibility,
                                              kVec2f_GrSLType, kDefault_GrSLPrecision,
                                              "ImageIncrement");
 
@@ -71,7 +72,7 @@
         GrGLSLShaderVar("c2",            kVec4f_GrSLType),
         GrGLSLShaderVar("c3",            kVec4f_GrSLType),
     };
-    GrGLFragmentBuilder* fsBuilder = args.fBuilder->getFragmentShaderBuilder();
+    GrGLSLFragmentBuilder* fsBuilder = args.fBuilder->getFragmentShaderBuilder();
     SkString coords2D = fsBuilder->ensureFSCoords2D(args.fCoords, 0);
     fsBuilder->emitFunction(kVec4f_GrSLType,
                             "cubicBlend",