As a consequence,
* Add Key.iconDisabledKey has been introduced and Key.getIcon honors
the enabled state of the key.
* The attribute id of disabled icon for shortcut key,
Keyboard_iconShortcutKeyDisabled, is renamed to
Keyboard_iconDisbledShortcutKey
* KeyboardIconsSet has getIconByIconId and getIconByAttrId methods
instead of getIcon.
Bug: 5778201
Change-Id: Ica93b073b9a04acd18ead7a33b60e3c6d813e7a1
42fcb2de64