Enable vertexless shading when path rendering is supported

src/gpu/gl/GrGLUniformManager.h

 /*
  * Copyright 2012 Google Inc.
  *
  * Use of this source code is governed by a BSD-style license that can be
  * found in the LICENSE file.
  */
 
 #ifndef GrGLUniformManager_DEFINED
 #define GrGLUniformManager_DEFINED
 
@@ skipping 51 matching lines @@
     void set3fv(UniformHandle, int offset, int arrayCount, const GrGLfloat v[]) const;
     void set4f(UniformHandle, GrGLfloat, GrGLfloat, GrGLfloat, GrGLfloat) const;
     void set4fv(UniformHandle, int offset, int arrayCount, const GrGLfloat v[]) const;
     // matrices are column-major, the first three upload a single matrix, the latter three upload
     // arrayCount matrices into a uniform array.
     void setMatrix3f(UniformHandle, const GrGLfloat matrix[]) const;
     void setMatrix4f(UniformHandle, const GrGLfloat matrix[]) const;
     void setMatrix3fv(UniformHandle, int offset, int arrayCount, const GrGLfloat matrices[]) const;
     void setMatrix4fv(UniformHandle, int offset, int arrayCount, const GrGLfloat matrices[]) const;
 
+    /** Functions for setting global GL uniforms. Since anybody can change these, they need to
+     *  be set every time, even if it's the same value as last time. The implementation will
+     *  shadow the state and skip updates where possible.
+     */
+    void enableGlobalTexGen(int unitIndex, int numComponents, const GrGLfloat* coefficients) const;
+    void enableGlobalTexGen(int unitIndex, int numComponents, const SkMatrix& matrix) const;
+
     // convenience method for uploading a SkMatrix to a 3x3 matrix uniform
     void setSkMatrix(UniformHandle, const SkMatrix&) const;
 
     struct BuilderUniform {
         GrGLShaderVar fVariable;
         uint32_t      fVisibility;
     };
     // This uses an allocator rather than array so that the GrGLShaderVars don't move in memory
     // after they are inserted. Users of GrGLShaderBuilder get refs to the vars and ptrs to their
     // name strings. Otherwise, we'd have to hand out copies.
@@ skipping 19 matching lines @@
         GrGLint     fFSLocation;
         GrSLType    fType;
         int         fArrayCount;
     };
 
     SkTArray<Uniform, true> fUniforms;
     GrGpuGL* fGpu;
 };
 
 #endif