[PATCH 4/11] ozone: evdev: Move EventModifiersEvdev usage to EventFactoryEvdev

ozone: evdev: Move EventModifiersEvdev usage to EventFactoryEvdev

This is part of a series moving IO on evdev devices to a fast thread,
since UI thread is too slow for the cursor.

EventModifiersEvdev is a UI thread object, so move all remaining
ui::Event construction outside of the device-specific objects. Devices
no longer get a EventModifiersEvdev* since they will execute on a
different thread.

This completes the series moving ui::Event construction out of device
objects and into EventFactoryEvdev.

BUG=449710
TEST=boot link_freon & click mouse

Committed: https://crrev.com/c21dfe902bc2da191d73f154406acc3e4b38d952
Cr-Commit-Position: refs/heads/master@{#313464}

[spang, 2015-01-23 21:57:56]

spang@chromium.org changed reviewers:
+ alexst@chromium.org

[alexst (slow to review), 2015-01-27 16:01:07]

lgtm

[spang, 2015-01-28 08:22:19]

The CQ bit was checked by spang@chromium.org

[commit-bot: I haz the power, 2015-01-28 08:22:55]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/867803004/40001

[commit-bot: I haz the power, 2015-01-28 08:54:20]

Committed patchset #3 (id:40001)

[commit-bot: I haz the power, 2015-01-28 08:55:28]

Patchset 3 (id:??) landed as
https://crrev.com/c21dfe902bc2da191d73f154406acc3e4b38d952
Cr-Commit-Position: refs/heads/master@{#313464}