Create swizzle table inside of glsl caps

src/gpu/gl/builders/GrGLShaderBuilder.h

 /*
  * Copyright 2014 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrGLShaderBuilder_DEFINED
 #define GrGLShaderBuilder_DEFINED
 
@@ skipping 108 matching lines @@
         }
     private:
         GrGLShaderBuilder* fBuilder;
     };
 
 protected:
     typedef GrTAllocator<GrGLSLShaderVar> VarArray;
     void appendDecls(const VarArray& vars, SkString* out) const;
 
     /*
-     * this super low level function is just for use internally to builders
-     */
-    void appendTextureLookup(const char* samplerName,
-                             const char* coordName,
-                             uint32_t configComponentMask,
-                             const char* swizzle);
-
-    /*
      * A general function which enables an extension in a shader if the feature bit is not present
      */
     void addFeature(uint32_t featureBit, const char* extensionName);
 
     enum InterfaceQualifier {
         kOut_InterfaceQualifier,
         kLastInterfaceQualifier = kOut_InterfaceQualifier
     };
 
     /*
@@ skipping 52 matching lines @@
     VarArray fOutputs;
     uint32_t fFeaturesAddedMask;
     SkSTArray<1, SkString> fLayoutParams[kLastInterfaceQualifier + 1];
     int fCodeIndex;
     bool fFinalized;
 
     friend class GrGLProgramBuilder;
     friend class GrGLPathProgramBuilder; // to access fInputs.
 };
 #endif