Enable vertexless shading when path rendering is supported

src/gpu/gl/GrGLProgram.h

 /*
  * Copyright 2011 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 
 #ifndef GrGLProgram_DEFINED
 #define GrGLProgram_DEFINED
@@ skipping 43 matching lines @@
      */
     void overrideBlend(GrBlendCoeff* srcCoeff, GrBlendCoeff* dstCoeff) const;
 
     const GrGLProgramDesc& getDesc() { return fDesc; }
 
     /**
      * Gets the GL program ID for this program.
      */
     GrGLuint programID() const { return fProgramID; }
 
+    bool hasVertexShader() const { return fHasVertexShader; }
+
     /**
      * Some GL state that is relevant to programs is not stored per-program. In particular color
      * and coverage attributes can be global state. This struct is read and updated by
      * GrGLProgram::setColor and GrGLProgram::setCoverage to allow us to avoid setting this state
      * redundantly.
      */
     struct SharedGLState {
         GrColor fConstAttribColor;
         int     fConstAttribColorIndex;
         GrColor fConstAttribCoverage;
@@ skipping 154 matching lines @@
 
     SkTArray<EffectAndSamplers> fColorEffects;
     SkTArray<EffectAndSamplers> fCoverageEffects;
 
     GrGLProgramDesc             fDesc;
     GrGpuGL*                    fGpu;
 
     GrGLUniformManager          fUniformManager;
     UniformHandles              fUniformHandles;
 
+    bool                        fHasVertexShader;
+    int                         fNumTexGenUnits;
+
     typedef SkRefCnt INHERITED;
 };
 
 #endif