InlinedVisitor: Migrate page to use inlined tracing

Source/core/page/PagePopupController.h

 /*
  * Copyright (C) 2012 Google 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:
  *
  *     * Redistributions of source code must retain the above copyright
  * notice, this list of conditions and the following disclaimer.
  *     * Redistributions in binary form must reproduce the above
@@ skipping 36 matching lines @@
     void setValueAndClosePopup(int numValue, const String& stringValue);
     void setValue(const String&);
     void closePopup();
     String localizeNumberString(const String&);
     String formatMonth(int year, int zeroBaseMonth);
     String formatShortMonth(int year, int zeroBaseMonth);
     String formatWeek(int year, int weekNumber, const String& localizedStartDate);
     void clearPagePopupClient();
     void histogramEnumeration(const String& name, int sample, int boundaryValue);
 
-    void trace(Visitor*) { }
+    DEFINE_INLINE_TRACE() { }
 
 private:
     explicit PagePopupController(PagePopupClient*);
 
     PagePopupClient* m_popupClient;
 };
 
 } // namespace blink
 
 #endif // PagePopupController_h