fix paint docs

fix bookmaker build for setHinting

TBR=reed@google.com

Bug: skia:
Change-Id: Ieade1bca4cd369eb5a9431796c83e039ae69e81c
Reviewed-on: https://skia-review.googlesource.com/c/168480
Reviewed-by: Cary Clark <caryclark@skia.org>
Commit-Queue: Cary Clark <caryclark@skia.org>
Auto-Submit: Cary Clark <caryclark@skia.org>
diff --git a/docs/undocumented.bmh b/docs/undocumented.bmh
index 3eda4eb..216373d 100644
--- a/docs/undocumented.bmh
+++ b/docs/undocumented.bmh
@@ -344,6 +344,16 @@
 ##
 #Class SkFont
 ##
+#Enum SkFontHinting
+#Const kNo_SkFontHinting 0
+##
+#Const kSlight_SkFontHinting 1
+##
+#Const kNormal_SkFontHinting 2
+##
+#Const kFull_SkFontHinting 3
+##
+##
 #Topic ##
 
 #Topic Font_Manager