Fix scriptCodeForHanFromSubtags() may return non-Han scripts

third_party/WebKit/Source/platform/LayoutLocale.cpp

Index: third_party/WebKit/Source/platform/LayoutLocale.cpp
diff --git a/third_party/WebKit/Source/platform/LayoutLocale.cpp b/third_party/WebKit/Source/platform/LayoutLocale.cpp
index 0a930c9f931e369448c1314a37a8357756a57c59..979f0559b69e0e51e19eef2d8737b1bd0275d401 100644
--- a/third_party/WebKit/Source/platform/LayoutLocale.cpp
+++ b/third_party/WebKit/Source/platform/LayoutLocale.cpp
@@ -54,16 +54,6 @@ const char* LayoutLocale::localeForSkFontMgr() const
     return m_stringForSkFontMgr.data();
 }
 
-static bool isUnambiguousHanScript(UScriptCode script)
-{
-    // localeToScriptCodeForFontSelection() does not return these values.
-    DCHECK(script != USCRIPT_HIRAGANA && script != USCRIPT_KATAKANA);
-    return script == USCRIPT_KATAKANA_OR_HIRAGANA
-        || script == USCRIPT_SIMPLIFIED_HAN
-        || script == USCRIPT_TRADITIONAL_HAN
-        || script == USCRIPT_HANGUL;
-}
-
 void LayoutLocale::computeScriptForHan() const
 {
     if (isUnambiguousHanScript(m_script)) {