Remove base class for installed transforms in GrPrimitiveProcessor

src/gpu/glsl/GrGLSLPrimitiveProcessor.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 GrGLSLPrimitiveProcessor_DEFINED
 #define GrGLSLPrimitiveProcessor_DEFINED
 
@@ skipping 82 matching lines @@
     virtual void setTransformData(const GrPrimitiveProcessor&,
                                   const GrGLSLProgramDataManager& pdman,
                                   int index,
                                   const SkTArray<const GrCoordTransform*, true>& transforms) = 0;
 
 protected:
     void setupUniformColor(GrGLSLPPFragmentBuilder* fragBuilder,
                            GrGLSLUniformHandler* uniformHandler,
                            const char* outputName,
                            UniformHandle* colorUniform);
-
-    struct Transform {
-        Transform() : fType(kVoid_GrSLType) { fCurrentValue = SkMatrix::InvalidMatrix(); }
-        SkMatrix       fCurrentValue;
-        GrSLType       fType;
-    };
 };
 
 #endif