Remove some unused functions in core

Source/core/css/CSSSegmentedFontFace.cpp

 /*
  * Copyright (C) 2008 Apple 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:
  * 1. Redistributions of source code must retain the above copyright
  *    notice, this list of conditions and the following disclaimer.
  * 2. Redistributions in binary form must reproduce the above copyright
  *    notice, this list of conditions and the following disclaimer in the
@@ skipping 141 matching lines @@
             ASSERT(!faceFontData->isSegmented());
             appendFontData(fontData.get(), faceFontData.release(), (*it)->cssFontFace()->ranges());
         }
     }
     if (fontData->numRanges())
         return fontData; // No release, we have a reference to an object in the cache which should retain the ref count it has.
 
     return nullptr;
 }
 
-bool CSSSegmentedFontFace::isLoading() const
-{
-    for (const auto& fontFace : m_fontFaces) {
-        if (fontFace->loadStatus() == FontFace::Loading)
-            return true;
-    }
-    return false;
-}
-
-bool CSSSegmentedFontFace::isLoaded() const
-{
-    for (const auto& fontFace : m_fontFaces) {
-        if (fontFace->loadStatus() != FontFace::Loaded)
-            return false;
-    }
-    return true;
-}
-
 void CSSSegmentedFontFace::willUseFontData(const FontDescription& fontDescription, UChar32 character)
 {
     for (FontFaceList::reverse_iterator it = m_fontFaces.rbegin(); it != m_fontFaces.rend(); ++it) {
         if ((*it)->loadStatus() != FontFace::Unloaded)
             break;
         if ((*it)->cssFontFace()->maybeScheduleFontLoad(fontDescription, character))
             break;
     }
 }
 
@@ skipping 16 matching lines @@
 
 void CSSSegmentedFontFace::trace(Visitor* visitor)
 {
 #if ENABLE(OILPAN)
     visitor->trace(m_fontSelector);
     visitor->trace(m_fontFaces);
 #endif
 }
 
 }