Replace SkTypeface::Style with SkFontStyle.

Committed: https://skia.googlesource.com/skia/+/43b8b36b20ae00e2d78421c4cda1f3f922983a20

Review URL: https://codereview.chromium.org/488143002
diff --git a/tools/sk_tool_utils_font.cpp b/tools/sk_tool_utils_font.cpp
index 3236f07..7cee944 100644
--- a/tools/sk_tool_utils_font.cpp
+++ b/tools/sk_tool_utils_font.cpp
@@ -63,7 +63,7 @@
             atexit(release_portable_typefaces);
         }
     }
-    return SkNEW_ARGS(SkTestTypeface, (font, style));
+    return SkNEW_ARGS(SkTestTypeface, (font, SkFontStyle(style)));
 }