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/samplecode/SampleAll.cpp b/samplecode/SampleAll.cpp
index ff8249f..01fbe0f 100644
--- a/samplecode/SampleAll.cpp
+++ b/samplecode/SampleAll.cpp
@@ -392,7 +392,8 @@
 
         canvas->save();
         canvas->translate(SkIntToScalar(0), SkIntToScalar(5));
-        paint.setFlags(SkPaint::kAntiAlias_Flag | SkPaint::kFilterBitmap_Flag);
+        paint.setAntiAlias(true);
+        paint.setFilterLevel(SkPaint::kLow_FilterLevel);
         // !!! draw through a clip
         paint.setColor(SK_ColorLTGRAY);
         paint.setStyle(SkPaint::kFill_Style);