Index: ash/system/palette/palette_tray.h |
diff --git a/ash/system/palette/palette_tray.h b/ash/system/palette/palette_tray.h |
index 0218715a3d63ef41799394f8f7513a7d3df368e4..4509e1c0b591accdfea4e1585695d82a744a1984 100644 |
--- a/ash/system/palette/palette_tray.h |
+++ b/ash/system/palette/palette_tray.h |
@@ -33,7 +33,8 @@ class PaletteToolManager; |
// The PaletteTray shows the palette in the bottom area of the screen. This |
// class also controls the lifetime for all of the tools available in the |
-// palette. |
+// palette. PaletteTray has one instance per-display. It is only made visible if |
+// the display is primary and if the device has stylus hardware. |
class ASH_EXPORT PaletteTray : public TrayBackgroundView, |
public SessionObserver, |
public ShellObserver, |