Comment 3 for bug 833397

Here are all the packages installed on this system with "indicator" in the name
evolution-indicator
gir1.2-appindicator-0.1
gir1.2-appindicator3-0.1
indicator-application
indicator-appmenu
indicator-datetime
indicator-me-gtk2
indicator-messages
indicator-multiload
indicator-power
indicator-session
indicator-session-gtk2
indicator-sound
indicator-sound-gtk2
indicator-status-provider-mc5
indicator-weather
libappindicator1
libappindicator3-1
libindicator-messages-status-provider1
libindicator3-6
libindicator6
python-appindicator

And also the output of xwinfo with this part of the panel
xwininfo: Window id: 0x3400002 "unity-2d-panel"

  Root window id: 0xab (the root window) (has no name)
  Parent window id: 0xab (the root window) (has no name)
     4 children:
     0x3400177 (has no name): () 1x1+-1+-1 +-1+-1
     0x3400125 (has no name): () 24x24+638+0 +638+0
        1 child:
        0x480006a "shutter": ("shutter" "Shutter") 24x24+0+0 +638+0
           1 child:
           0x480006b (has no name): () 1x1+-1+-1 +637+-1
     0x340006e (has no name): () 24x24+606+0 +606+0
        1 child:
        0xc00015 "Power Manager": ("gnome-power-manager" "gnome-power-manager") 24x24+0+0 +606+0
           1 child:
           0xc00016 (has no name): () 1x1+-1+-1 +605+-1
     0x340002c (has no name): () 24x24+574+0 +574+0
        1 child:
        0x1600050 "Power Manager": ("gnome-power-manager" "gnome-power-manager") 24x24+0+0 +574+0
           1 child:
           0x1600051 (has no name): () 1x1+-1+-1 +573+-1

So it looks like gnome-power-manager applets.