Remove IPC::ParamTraits for ui::Event.

Remove IPC::ParamTraits for ui::Event.

We decided to use struct traits for ui::Event and don't need the param traits
anymore.

This CL reverts the changes we don't need anymore in the following CLs:
* https://codereview.chromium.org/1695783002/
* https://codereview.chromium.org/1800633002/

BUG=584687
Committed: https://crrev.com/050ea6592f80eec952c40f8c2e3b40d281bc7f24
Cr-Commit-Position: refs/heads/master@{#398653}

[Hadi, 2016-06-08 15:33:19]

Description was changed from

==========
Remove IPC::ParamTraits for ui::Event.

We decided to use struct traits for ui::Event and don't need the param traits
anymore.

This CL reverts the changes we don't need anymore in the following CLs:
* https://codereview.chromium.org/1695783002/
* https://codereview.chromium.org/1695783002/

BUG=584687
==========

to

==========
Remove IPC::ParamTraits for ui::Event.

We decided to use struct traits for ui::Event and don't need the param traits
anymore.

This CL reverts the changes we don't need anymore in the following CLs:
* https://codereview.chromium.org/1695783002/
* https://codereview.chromium.org/1800633002/

BUG=584687
==========

[Hadi, 2016-06-08 15:40:42]

moshayedi@chromium.org changed reviewers:
+ markdittmer@chromium.org, sadrul@chromium.org, sky@chromium.org

[Hadi, 2016-06-08 15:40:43]

PTAL.

[Mark Dittmer, 2016-06-08 16:39:49]

One nit related to bot failure. Otherwise, lgtm.

https://codereview.chromium.org/2049053003/diff/20001/components/mus/DEPS
File components/mus/DEPS (left):

https://codereview.chromium.org/2049053003/diff/20001/components/mus/DEPS#old...
components/mus/DEPS:3: "+ipc",
Looks like some tests still need //ipc.
https://build.chromium.org/p/tryserver.chromium.linux/builders/linux_chromium...

[sadrul, 2016-06-08 16:58:39]

lgtm++

[Hadi, 2016-06-08 17:37:45]

https://codereview.chromium.org/2049053003/diff/20001/components/mus/DEPS
File components/mus/DEPS (left):

https://codereview.chromium.org/2049053003/diff/20001/components/mus/DEPS#old...
components/mus/DEPS:3: "+ipc",
On 2016/06/08 16:39:49, Mark Dittmer wrote:
> Looks like some tests still need //ipc.
>
https://build.chromium.org/p/tryserver.chromium.linux/builders/linux_chromium...

Done.

[sky, 2016-06-08 20:10:00]

mus LGTM

[Hadi, 2016-06-08 20:10:30]

The CQ bit was checked by moshayedi@chromium.org

[Hadi, 2016-06-08 20:10:31]

The patchset sent to the CQ was uploaded after l-g-t-m from sadrul@chromium.org,
markdittmer@chromium.org
Link to the patchset: https://codereview.chromium.org/2049053003/#ps40001
(title: "Addressed feedback.")

[commit-bot: I haz the power, 2016-06-08 20:11:18]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/2049053003/40001

[commit-bot: I haz the power, 2016-06-08 20:17:15]

Description was changed from

==========
Remove IPC::ParamTraits for ui::Event.

We decided to use struct traits for ui::Event and don't need the param traits
anymore.

This CL reverts the changes we don't need anymore in the following CLs:
* https://codereview.chromium.org/1695783002/
* https://codereview.chromium.org/1800633002/

BUG=584687
==========

to

==========
Remove IPC::ParamTraits for ui::Event.

We decided to use struct traits for ui::Event and don't need the param traits
anymore.

This CL reverts the changes we don't need anymore in the following CLs:
* https://codereview.chromium.org/1695783002/
* https://codereview.chromium.org/1800633002/

BUG=584687
==========

[commit-bot: I haz the power, 2016-06-08 20:17:16]

Committed patchset #3 (id:40001)

[commit-bot: I haz the power, 2016-06-08 20:18:50]

Description was changed from

==========
Remove IPC::ParamTraits for ui::Event.

We decided to use struct traits for ui::Event and don't need the param traits
anymore.

This CL reverts the changes we don't need anymore in the following CLs:
* https://codereview.chromium.org/1695783002/
* https://codereview.chromium.org/1800633002/

BUG=584687
==========

to

==========
Remove IPC::ParamTraits for ui::Event.

We decided to use struct traits for ui::Event and don't need the param traits
anymore.

This CL reverts the changes we don't need anymore in the following CLs:
* https://codereview.chromium.org/1695783002/
* https://codereview.chromium.org/1800633002/

BUG=584687

Committed: https://crrev.com/050ea6592f80eec952c40f8c2e3b40d281bc7f24
Cr-Commit-Position: refs/heads/master@{#398653}
==========

[commit-bot: I haz the power, 2016-06-08 20:18:52]

Patchset 3 (id:??) landed as
https://crrev.com/050ea6592f80eec952c40f8c2e3b40d281bc7f24
Cr-Commit-Position: refs/heads/master@{#398653}