Revert of [Oilpan]: Moving the FontSelector/FontCacheClient, CSSSegmentedFontFace, and FontFaceCache to the o…

Source/core/css/CSSFontSelector.cpp

Index: Source/core/css/CSSFontSelector.cpp
diff --git a/Source/core/css/CSSFontSelector.cpp b/Source/core/css/CSSFontSelector.cpp
index 1de90bee88fb2d815a29e6b6d003197a90e84334..5ff2d00ac56d4a8157bfb853f548a7dcb59d96c0 100644
--- a/Source/core/css/CSSFontSelector.cpp
+++ b/Source/core/css/CSSFontSelector.cpp
@@ -121,9 +121,7 @@
 CSSFontSelector::~CSSFontSelector()
 {
     clearDocument();
-#if !ENABLE(OILPAN)
     FontCache::fontCache()->removeClient(this);
-#endif
 }
 
 void CSSFontSelector::registerForInvalidationCallbacks(CSSFontSelectorClient* client)
@@ -229,11 +227,4 @@
     m_genericFontFamilySettings = document.settings()->genericFontFamilySettings();
 }
 
-void CSSFontSelector::trace(Visitor* visitor)
-{
-    visitor->trace(m_fontFaceCache);
-    visitor->trace(m_clients);
-    visitor->trace(m_fontLoader);
-}
-
-}
+}