Always use original ascent/descent for FontMetrics::floatAscent|floatDescent

third_party/WebKit/Source/platform/fonts/FontDescription.h

Index: third_party/WebKit/Source/platform/fonts/FontDescription.h
diff --git a/third_party/WebKit/Source/platform/fonts/FontDescription.h b/third_party/WebKit/Source/platform/fonts/FontDescription.h
index d5ac5333df3bc91f7068b8d5369009ba1fa84a89..2530c78eebd8267c2278f1593ed688504505f3ee 100644
--- a/third_party/WebKit/Source/platform/fonts/FontDescription.h
+++ b/third_party/WebKit/Source/platform/fonts/FontDescription.h
@@ -301,14 +301,6 @@ class PLATFORM_EXPORT FontDescription {
   }
   static bool subpixelPositioning() { return s_useSubpixelTextPositioning; }
 
-  void setSubpixelAscentDescent(bool sp) const {
-    m_fields.m_subpixelAscentDescent = sp;
-  }
-
-  bool subpixelAscentDescent() const {
-    return m_fields.m_subpixelAscentDescent;
-  }
-
   static void setDefaultTypesettingFeatures(TypesettingFeatures);
   static TypesettingFeatures defaultTypesettingFeatures();
 
@@ -381,7 +373,6 @@ class PLATFORM_EXPORT FontDescription {
     unsigned m_subpixelTextPosition : 1;
     unsigned m_typesettingFeatures : 3;
     unsigned m_variantNumeric : 8;
-    mutable unsigned m_subpixelAscentDescent : 1;
   };
 
   static_assert(sizeof(BitFields) == sizeof(FieldsAsUnsignedType),