stop using bitmap-filter flags outside of paint itself, as a step towards really changing them into an enum

BUG=

Review URL: https://codereview.chromium.org/19825002

git-svn-id: http://skia.googlecode.com/svn/trunk@10240 2bbb7eff-a529-9590-31e7-b0007b416f81
diff --git a/bench/BitmapScaleBench.cpp b/bench/BitmapScaleBench.cpp
index 561e096..2187346 100644
--- a/bench/BitmapScaleBench.cpp
+++ b/bench/BitmapScaleBench.cpp
@@ -96,8 +96,7 @@
         SkCanvas canvas( fOutputBitmap );
         SkPaint paint;
 
-        paint.setFlags( SkPaint::kHighQualityFilterBitmap_Flag | SkPaint::kFilterBitmap_Flag );
-
+        paint.setFilterLevel(SkPaint::kHigh_FilterLevel);
         canvas.drawBitmapMatrix( fInputBitmap, fMatrix, &paint );
     }
 private: