SkPaint::FilterLevel -> SkFilterQuality

clone (+rebase) of https://codereview.chromium.org/1009183002/

BUG=skia:
TBR=scroggo@google.com

Review URL: https://codereview.chromium.org/1014533004
diff --git a/gm/clippedbitmapshaders.cpp b/gm/clippedbitmapshaders.cpp
index ee20847..6225abe 100644
--- a/gm/clippedbitmapshaders.cpp
+++ b/gm/clippedbitmapshaders.cpp
@@ -89,7 +89,7 @@
         paint.setShader(shader)->unref();
 
         if (fHQ) {
-            paint.setFilterLevel(SkPaint::kHigh_FilterLevel);
+            paint.setFilterQuality(kHigh_SkFilterQuality);
         }
 
         SkScalar margin = (SLIDE_SIZE / 3 - RECT_SIZE) / 2;