Merge 94508 - <rdar://problem/10071256> Retain retired custom fonts until the next style recalc

Source/WebCore/dom/Document.h

Index: Source/WebCore/dom/Document.h
===================================================================
--- Source/WebCore/dom/Document.h	(revision 95343)
+++ Source/WebCore/dom/Document.h	(working copy)
@@ -81,6 +81,7 @@
 class Event;
 class EventListener;
 class EventQueue;
+class FontData;
 class FormAssociatedElement;
 class Frame;
 class FrameView;
@@ -547,6 +548,8 @@
     PassRefPtr<RenderStyle> styleForElementIgnoringPendingStylesheets(Element*);
     PassRefPtr<RenderStyle> styleForPage(int pageIndex);
 
+    void retireCustomFont(FontData*);
+
     // Returns true if page box (margin boxes and page borders) is visible.
     bool isPageBoxVisible(int pageIndex);
 
@@ -1138,6 +1141,8 @@
 
     void createStyleSelector();
 
+    void deleteRetiredCustomFonts();
+
     PassRefPtr<NodeList> handleZeroPadding(const HitTestRequest&, HitTestResult&) const;
 
     void loadEventDelayTimerFired(Timer<Document>*);
@@ -1151,7 +1156,8 @@
     OwnPtr<CSSStyleSelector> m_styleSelector;
     bool m_didCalculateStyleSelector;
     bool m_hasDirtyStyleSelector;
-    
+    Vector<OwnPtr<FontData> > m_retiredCustomFonts;
+
     mutable RefPtr<CSSPrimitiveValueCache> m_cssPrimitiveValueCache;
 
     Frame* m_frame;