Enable vertexless shading when path rendering is supported

src/gpu/gl/GrGLEffectMatrix.h

Index: src/gpu/gl/GrGLEffectMatrix.h
diff --git a/src/gpu/gl/GrGLEffectMatrix.h b/src/gpu/gl/GrGLEffectMatrix.h
index 56dda4563b6384d5f1c0fc0dbf31ab7dc7b53fd2..aac5b478b44b0b5bdb7c4116ebd32dc32f02e957 100644
--- a/src/gpu/gl/GrGLEffectMatrix.h
+++ b/src/gpu/gl/GrGLEffectMatrix.h
@@ -59,7 +59,9 @@ public:
     };
 
     GrGLEffectMatrix(CoordsType coordsType)
-        : fCoordsType(coordsType) {
+        : fCoordsType(coordsType)
+        , fTexGenUnit(-1)
+        , fNumTexGenComponents(0) {
         SkASSERT(GrEffect::kLocal_CoordsType == coordsType ||
                  GrEffect::kPosition_CoordsType == coordsType);
         fPrevMatrix = SkMatrix::InvalidMatrix();
@@ -115,6 +117,8 @@ public:
     GrSLType                          fUniType;
     SkMatrix                          fPrevMatrix;
     CoordsType                        fCoordsType;
+    int                               fTexGenUnit;
+    int                               fNumTexGenComponents;
 };
 
 #endif