DEFINE_ACTIVITY_ID   13 chrome/browser/android/activity_type_id_list.h DEFINE_ACTIVITY_ID(NONE, 0)
DEFINE_ACTIVITY_ID   14 chrome/browser/android/activity_type_id_list.h DEFINE_ACTIVITY_ID(UNKNOWN, 1)
DEFINE_ACTIVITY_ID   15 chrome/browser/android/activity_type_id_list.h DEFINE_ACTIVITY_ID(MAIN, 2)
DEFINE_ACTIVITY_ID   16 chrome/browser/android/activity_type_id_list.h DEFINE_ACTIVITY_ID(PREFERENCES, 3)
DEFINE_ACTIVITY_ID   17 chrome/browser/android/activity_type_id_list.h DEFINE_ACTIVITY_ID(WEBAPPACTIVITY, 4)
DEFINE_ACTIVITY_ID   18 chrome/browser/android/activity_type_id_list.h DEFINE_ACTIVITY_ID(FULLSCREENACTIVITY, 5)
DEFINE_ACTIVITY_ID   19 chrome/browser/android/activity_type_id_list.h DEFINE_ACTIVITY_ID(MAX_VALUE, 6)