ozone: evdev: Use real initializer MockTouchEventConverterEvdev

ozone: evdev: Use real initializer MockTouchEventConverterEvdev

Use the captured description of the touchscreen for Chromebook Pixel to
initialize the mock touchscreen, instead of just faking a couple of
the members and leaving the rest uninitialized.

The press, release, & move tests are merged into one test using real
captured data from the Pixel touchscreen. The other tests just got
their "pressure" values rescaled to the new axis.

Now we can add a test that pases in a non-MT device description.

BUG=461518
TEST=events_unittests

Committed: https://crrev.com/c85426f444de061f8d75f59c63f94f48a2490232
Cr-Commit-Position: refs/heads/master@{#322607}

[spang, 2015-03-25 23:41:50]

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

[spang, 2015-03-25 23:41:51]

on top of https://codereview.chromium.org/1019793011/

[kpschoedel, 2015-03-26 14:58:26]

lgtm

[spang, 2015-03-27 17:53:35]

The CQ bit was checked by spang@chromium.org

[spang, 2015-03-27 17:53:36]

The patchset sent to the CQ was uploaded after l-g-t-m from
kpschoedel@chromium.org
Link to the patchset: https://codereview.chromium.org/1019803006/#ps20001
(title: "remove stray event")

[commit-bot: I haz the power, 2015-03-27 17:54:30]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1019803006/20001

[commit-bot: I haz the power, 2015-03-27 18:20:01]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-03-27 18:21:29]

Patchset 2 (id:??) landed as
https://crrev.com/c85426f444de061f8d75f59c63f94f48a2490232
Cr-Commit-Position: refs/heads/master@{#322607}