Adding Locale (language attribute) information to font and using the

Source/platform/fonts/FontDescription.h

Index: Source/platform/fonts/FontDescription.h
diff --git a/Source/platform/fonts/FontDescription.h b/Source/platform/fonts/FontDescription.h
index 4a12367cdb11457652c846caa5cf31bacd3dea73..b4a6160af328571e0b91f3e1d55bc2a207cebf7a 100644
--- a/Source/platform/fonts/FontDescription.h
+++ b/Source/platform/fonts/FontDescription.h
@@ -81,6 +81,7 @@ public:
         , m_syntheticItalic(false)
         , m_subpixelTextPosition(s_useSubpixelTextPositioning)
         , m_typesettingFeatures(s_defaultTypesettingFeatures)
+        , m_locale(String("en"))

[eae, 2014/05/19 18:56:13]

How about storing the hb_language_t instead of the locale string and then
initialize it to either HB_LANGUAGE_INVALID or hb_language_get_default()?

[h.joshi, 2014/05/20 04:22:14]

Okey, will start working on this suggestion and share new patch.

     {
     }
 
@@ -116,6 +117,7 @@ public:
     FontSmoothingMode fontSmoothing() const { return static_cast<FontSmoothingMode>(m_fontSmoothing); }
     TextRenderingMode textRendering() const { return static_cast<TextRenderingMode>(m_textRendering); }
     UScriptCode script() const { return static_cast<UScriptCode>(m_script); }
+    const String& locale() const { return m_locale; }
     bool isSyntheticBold() const { return m_syntheticBold; }
     bool isSyntheticItalic() const { return m_syntheticItalic; }
     bool useSubpixelPositioning() const { return m_subpixelTextPosition; }
@@ -154,6 +156,7 @@ public:
     void setNonCJKGlyphOrientation(NonCJKGlyphOrientation orientation) { m_nonCJKGlyphOrientation = orientation; }
     void setWidthVariant(FontWidthVariant widthVariant) { m_widthVariant = widthVariant; }
     void setScript(UScriptCode s) { m_script = s; }
+    void setLocale(const String& localeStr) { m_locale = localeStr; }
     void setSyntheticBold(bool syntheticBold) { m_syntheticBold = syntheticBold; }
     void setSyntheticItalic(bool syntheticItalic) { m_syntheticItalic = syntheticItalic; }
     void setFeatureSettings(PassRefPtr<FontFeatureSettings> settings) { m_featureSettings = settings; }
@@ -219,6 +222,7 @@ private:
     static TypesettingFeatures s_defaultTypesettingFeatures;
 
     static bool s_useSubpixelTextPositioning;
+    String m_locale;
 };
 
 inline bool FontDescription::operator==(const FontDescription& other) const