ash: Move "CAPS LOCK is on." bubble to the notification center.

ash/system/system_notifier.h

Index: ash/system/system_notifier.h
diff --git a/ash/system/system_notifier.h b/ash/system/system_notifier.h
index 40aaac509320ce8e0f3d4ab29a1b7fa9dd62f5c7..12b4ce199c95f10b25b21fd8a8298144a6777c0d 100644
--- a/ash/system/system_notifier.h
+++ b/ash/system/system_notifier.h
@@ -17,6 +17,7 @@ namespace system_notifier {
 ASH_EXPORT extern const char kNotifierAccessibility[];
 ASH_EXPORT extern const char kNotifierBattery[];
 ASH_EXPORT extern const char kNotifierBluetooth[];
+ASH_EXPORT extern const char kNotifierCapsLock[];
 ASH_EXPORT extern const char kNotifierDeprecatedAccelerator[];
 ASH_EXPORT extern const char kNotifierDisk[];
 ASH_EXPORT extern const char kNotifierDisplay[];