Remove EF_FUNCTION_KEY and EF_NUMPAD_KEY.

ui/events/event_constants.h

Index: ui/events/event_constants.h
diff --git a/ui/events/event_constants.h b/ui/events/event_constants.h
index cf55e3ecd14f0d7a91b6c7a40482116011524941..550034f71187f825b8e5a7bf28db42e026d49cd4 100644
--- a/ui/events/event_constants.h
+++ b/ui/events/event_constants.h
@@ -100,12 +100,10 @@ enum EventFlags {
 
 // Flags specific to key events
 enum KeyEventFlags {
-  EF_NUMPAD_KEY         = 1 << 16,  // Key originates from number pad (Xkb only)
   EF_IME_FABRICATED_KEY = 1 << 17,  // Key event fabricated by the underlying
                                     // IME without a user action.
                                     // (Linux X11 only)
   EF_IS_REPEAT          = 1 << 18,
-  EF_FUNCTION_KEY       = 1 << 19,  // Key originates from function key row
   EF_FINAL              = 1 << 20,  // Do not remap; the event was created with
                                     // the desired final values.
 };