Update Gaia API documents for #d8e179f0014c7e8c5855bed6484340e94dc94132
    Merge pull request #14201 from timdream/keyboard-disable-install

Bug 944295 - Uninstall the input app when the feature is not enabled, r=gchen
(cherry picked from commit 00b3f8e781ce8d721c50ea7015010b67dba69c2a)

Conflicts:
	apps/system/test/unit/mock_keyboard_manager.js