Fix setting properties on CSSFontFaceRule

third_party/WebKit/Source/core/css/parser/CSSParserMode.h

Index: third_party/WebKit/Source/core/css/parser/CSSParserMode.h
diff --git a/third_party/WebKit/Source/core/css/parser/CSSParserMode.h b/third_party/WebKit/Source/core/css/parser/CSSParserMode.h
index b5e9109dda77a0d1c58e46fdf2031624a8359bdb..7bd8cc1a27b4096193969732207d7db905b8be0b 100644
--- a/third_party/WebKit/Source/core/css/parser/CSSParserMode.h
+++ b/third_party/WebKit/Source/core/css/parser/CSSParserMode.h
@@ -51,6 +51,7 @@ enum CSSParserMode {
   // @viewport rules are parsed in standards mode but CSSOM modifications (via StylePropertySet)

[Timothy Loh, 2016/10/05 03:08:54]

Comment needs to be updated, maybe something like

// @viewport/@font-face rules are specially tagged in StylePropertySet so CSSOM
modifications don't treat them as style rules.

[rwlbuis, 2016/10/05 14:21:37]

Done.

   // must call parseViewportProperties so needs a special mode.
   CSSViewportRuleMode,
+  CSSFontFaceRuleMode,
   // User agent stylesheets are parsed in standards mode but also allows internal properties and values.
   UASheetMode
 };