swith over from SkPaint::FilterLevel to SkFilterQuality

gm/bitmapfilters.cpp

Index: gm/bitmapfilters.cpp
diff --git a/gm/bitmapfilters.cpp b/gm/bitmapfilters.cpp
index f1348b14371376603b8e37c3c25df0ec482f4994..8b68d3b12b428cf9e524c85e5c0b6b7c6d853e43 100644
--- a/gm/bitmapfilters.cpp
+++ b/gm/bitmapfilters.cpp
@@ -41,7 +41,7 @@ static SkScalar draw_bm(SkCanvas* canvas, const SkBitmap& bm,
 static SkScalar draw_set(SkCanvas* c, const SkBitmap& bm, SkScalar x,
                          SkPaint* p) {
     x += draw_bm(c, bm, x, 0, p);
-    p->setFilterLevel(SkPaint::kLow_FilterLevel);
+    p->setFilterQuality(kLow_SkFilterQuality);
     x += draw_bm(c, bm, x, 0, p);
     p->setDither(true);
     return x + draw_bm(c, bm, x, 0, p);