Fix cc/paint skia type mismatches

ash/common/shelf/shelf_button.cc

Index: ash/common/shelf/shelf_button.cc
diff --git a/ash/common/shelf/shelf_button.cc b/ash/common/shelf/shelf_button.cc
index 2a9d2ad924f891fd4f3d1c8534fa4de8e0bfc548..ff2e786a1d0a3cfbdbba3b942437fd1976c13731 100644
--- a/ash/common/shelf/shelf_button.cc
+++ b/ash/common/shelf/shelf_button.cc
@@ -53,8 +53,8 @@ const int kIconPaddingVertical = 8;
 // Paints an activity indicator on |canvas| whose |size| is specified in DIP.
 void PaintIndicatorOnCanvas(gfx::Canvas* canvas, const gfx::Size& size) {
   cc::PaintFlags flags;
+  flags.setAntiAlias(true);
   flags.setColor(kIndicatorColor);
-  flags.setFlags(cc::PaintFlags::kAntiAlias_Flag);
   canvas->DrawCircle(
       gfx::Point(size.width() / 2,
                  size.height() - kIndicatorOffsetFromBottom - kIndicatorRadius),