Enable vertexless shading when path rendering is supported

src/gpu/gl/GrGLUniformManager.h

Index: src/gpu/gl/GrGLUniformManager.h
diff --git a/src/gpu/gl/GrGLUniformManager.h b/src/gpu/gl/GrGLUniformManager.h
index eefab049865070d92ea57cb88ccdfb536fea3a18..85a6e7ec9e35f290482cdc9eb44f4aab6e95384d 100644
--- a/src/gpu/gl/GrGLUniformManager.h
+++ b/src/gpu/gl/GrGLUniformManager.h
@@ -69,6 +69,13 @@ public:
     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;