Text blob run paints should be filtered.

include/core/SkDevice.h

Index: include/core/SkDevice.h
diff --git a/include/core/SkDevice.h b/include/core/SkDevice.h
index 777b7f8fd7bf786de5d30136eab5b0b8ab4f9ebe..c7c5c30b3a03fd19909db1d5ca2d861c9ffc278e 100644
--- a/include/core/SkDevice.h
+++ b/include/core/SkDevice.h
@@ -16,6 +16,7 @@
 
 class SkClipStack;
 class SkDraw;
+class SkDrawFilter;
 struct SkIRect;
 class SkMatrix;
 class SkMetaData;
@@ -225,7 +226,7 @@ protected:
                               const SkPaint& paint) = 0;
     // default implementation unrolls the blob runs.
     virtual void drawTextBlob(const SkDraw&, const SkTextBlob*, SkScalar x, SkScalar y,
-                              const SkPaint& paint);
+                              const SkPaint& paint, SkDrawFilter* drawFilter);
     // default implementation calls drawVertices
     virtual void drawPatch(const SkDraw&, const SkPoint cubics[12], const SkColor colors[4],
                            const SkPoint texCoords[4], SkXfermode* xmode, const SkPaint& paint);