expand flag to include all text-related paint fields

Bug: skia:
Change-Id: I8453a6d607df4902cd05c5c9bc6162feda04ef9c
Reviewed-on: https://skia-review.googlesource.com/c/182969
Reviewed-by: Mike Reed <reed@google.com>
Commit-Queue: Mike Reed <reed@google.com>
Auto-Submit: Mike Reed <reed@google.com>
diff --git a/tools/viewer/Viewer.h b/tools/viewer/Viewer.h
index 2cff486..495c81b 100644
--- a/tools/viewer/Viewer.h
+++ b/tools/viewer/Viewer.h
@@ -45,6 +45,8 @@
         bool fTextScaleX = false;
         bool fTextSkewX = false;
         bool fHinting = false;
+        bool fEdging = false;
+        bool fSubpixel = false;
     };
     struct SkPaintFields {
         bool fPathEffect = false;