CleanUpOldNavigations  863 chrome/browser/prerender/prerender_manager.cc   CleanUpOldNavigations();
CleanUpOldNavigations  953 chrome/browser/prerender/prerender_manager.cc   CleanUpOldNavigations();
CleanUpOldNavigations  600 chrome/browser/prerender/prerender_manager.h   void CleanUpOldNavigations();