CHROMEGTK_CALLBACK_5 30 chrome/browser/ui/libgtk2ui/gtk2_signal.h #define CHROMEGTK_CALLBACK_5(CLASS, RETURN, METHOD, ARG1, ARG2, ARG3, ARG4, \ CHROMEGTK_CALLBACK_5 30 ui/base/gtk/gtk_signal.h #define CHROMEGTK_CALLBACK_5(CLASS, RETURN, METHOD, ARG1, ARG2, ARG3, ARG4, \