The first key and the last of the row are automatically marked as left and right edge key respectively. The existence of Spacer will prevent those automatic marking. Bug: 5038844 Change-Id: Ie34169ceaf76e24923b8d8125eda6ecb95cf1fee
Bug: 4170083 Change-Id: I977d7f6cce08e35fe9bed46fe5f4fdedd1f12e9c
Change-Id: I7147cab36eee4b6fd9418ca36e8ece2360b59e45