BooleanSwitchToPreferenceMapEntry 37 chrome/browser/prefs/command_line_pref_store.cc const CommandLinePrefStore::BooleanSwitchToPreferenceMapEntry BooleanSwitchToPreferenceMapEntry 64 chrome/browser/prefs/command_line_pref_store.h static const BooleanSwitchToPreferenceMapEntry boolean_switch_map_[];