Add udev-input-trigger.conf
Add udev-input-trigger.conf

This upstart script replays input subsystem kernel events that arrived before udevd was started.
These events are needed so X can initialize its input devices on startup.
Other udev events will get replayed by the udev-addon.

This doesn't solve the race between X input initialization and udev.
It merely makes udev scan the input subsystem faster such that it is more likely
to win the race.

BUG=chromium-os:14789
TEST=1. Press Ctrl+Alt+F2 as soon as you see the login screen at boot.
2. From VT2 press Ctrl+Alt+F1 to come back to login screen
3. Try built-in keyboard and mouse.

Change-Id: I198054f6f81a74fa100acd5856fcbddf4504a687
Reviewed-on: http://gerrit.chromium.org/gerrit/763
Reviewed-by: Richard Barnette <9e7d66387742bf40b0d2548ef2b93e7c522ca0eb@chromium.org>
Reviewed-by: Terry Lambert <f31fd7e0e83d662934f80cc9a2fd8f7385851082@chromium.org>
Tested-by: Benson Leung <998395a8308946159d5d40179d81ad2bfe699e21@chromium.org>

joshfire/chromiumos-platform-init