Enable vertexless shading when path rendering is supported

src/gpu/gl/GrGLUniformManager.cpp

Index: src/gpu/gl/GrGLUniformManager.cpp
diff --git a/src/gpu/gl/GrGLUniformManager.cpp b/src/gpu/gl/GrGLUniformManager.cpp
index 74bb651fa4b5a6b55680c9d5be49e9ccaaa45568..b3ed2dc7a4df34c1792f3d726b180d5361fcf8ea 100644
--- a/src/gpu/gl/GrGLUniformManager.cpp
+++ b/src/gpu/gl/GrGLUniformManager.cpp
@@ -233,6 +233,18 @@ void GrGLUniformManager::setMatrix4fv(UniformHandle u,
     }
 }
 
+void GrGLUniformManager::enableGlobalTexGen(int unitIndex,
+                                            int numComponents,
+                                            const GrGLfloat* coefficients) const {
+    fGpu->enableTexGen(unitIndex, numComponents, coefficients);
+}
+
+void GrGLUniformManager::enableGlobalTexGen(int unitIndex,
+                                            int numComponents,
+                                            const SkMatrix& matrix) const {
+    fGpu->enableTexGen(unitIndex, numComponents, matrix);
+}
+
 void GrGLUniformManager::setSkMatrix(UniformHandle u, const SkMatrix& matrix) const {
 //    GR_STATIC_ASSERT(SK_SCALAR_IS_FLOAT);
     GrGLfloat mt[] = {