Crude Chrome @font-face leak patch

Index: WebCore/dom/Document.h
===================================================================
--- WebCore/dom/Document.h      (revision 121274)
+++ WebCore/dom/Document.h      (working copy)
@@ -528,6 +528,8 @@

     void registerCustomFont(PassOwnPtr<FontData>);

+    void deleteCustomFonts();
+
     // Returns true if page box (margin boxes and page borders) is visible.
     bool isPageBoxVisible(int pageIndex);

@@ -1188,8 +1190,6 @@
     void seamlessParentUpdatedStylesheets();
     void notifySeamlessChildDocumentsOfStylesheetUpdate() const;

-    void deleteCustomFonts();
-
     PassRefPtr<NodeList> handleZeroPadding(const HitTestRequest&, HitTestResult&) const;

     void loadEventDelayTimerFired(Timer<Document>*);
Index: WebCore/page/FrameView.cpp
===================================================================
--- WebCore/page/FrameView.cpp  (revision 121274)
+++ WebCore/page/FrameView.cpp  (working copy)
@@ -985,6 +985,7 @@
         // Viewport-dependent media queries may cause us to need completely different style information.
         // Check that here.
         if (document->styleResolver()->affectedByViewportChange()) {
+            document->deleteCustomFonts();
             document->styleResolverChanged(RecalcStyleImmediately);
             InspectorInstrumentation::mediaQueryResultChanged(document);
         } else