Change the system font fallback to take lang attributes into account on Windows

third_party/WebKit/Source/platform/fonts/win/FontFallbackWin.h

 /*
  * Copyright (c) 2006, 2007, 2008, Google Inc. All rights reserved.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are
  * met:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 31 matching lines @@
 class SkFontMgr;
 
 namespace blink {
 
 // Return a font family that can render |character| based on what script
 // that characters belong to.
 // When scriptChecked is non-zero, the script used to determine
 // the family is returned.
 PLATFORM_EXPORT const UChar* getFallbackFamily(UChar32 character,
     FontDescription::GenericFamilyType,
+    UScriptCode contentScript,
+    const AtomicString& contentLocale,
     UScriptCode* scriptChecked,
     SkFontMgr* fontManager);
 PLATFORM_EXPORT UScriptCode scriptCodeForUnifiedHanFromLocale(const icu::Locale&);
+PLATFORM_EXPORT UScriptCode scriptCodeForUnifiedHanFromSubtags(const String& locale);
 
 } // namespace blink
 
 #endif // FontFallbackWin_h