Reland: cros: Show notification when low-power charger connected

ash/ash_switches.h

Index: ash/ash_switches.h
diff --git a/ash/ash_switches.h b/ash/ash_switches.h
index 6414bd98fa1ae80f189c5b82090b3054a01aaa53..f94a01f5769ca40f105387787280b81d57c6242c 100644
--- a/ash/ash_switches.h
+++ b/ash/ash_switches.h
@@ -33,6 +33,7 @@ ASH_EXPORT extern const char kAshDisableDisplayRotation[];
 ASH_EXPORT extern const char kAshDisableDragAndDropAppListToLauncher[];
 #if defined(OS_CHROMEOS)
 ASH_EXPORT extern const char kAshDisableSoftwareMirroring[];
+ASH_EXPORT extern const char kAshDisableUsbChargerNotification[];
 #endif
 ASH_EXPORT extern const char kAshEnableAudioDeviceMenu[];
 ASH_EXPORT extern const char kAshEnableAdvancedGestures[];
@@ -69,6 +70,12 @@ ASH_EXPORT bool ShowAudioDeviceMenu();
 // Returns true if the alternate shelf layout should be used.
 ASH_EXPORT bool UseAlternateShelfLayout();
 
+#if defined(OS_CHROMEOS)
+// Returns true if a notification should appear when a low-power USB charger
+// is connected.
+ASH_EXPORT bool UseUsbChargerNotification();
+#endif
+
 }  // namespace switches
 }  // namespace ash