[Ozone-Drm] Fix Ozone initialization order

[Ozone-Drm] Fix Ozone initialization order

Need to initialize the WindowHostManager before the DrmCursor since the
DrmCursor depends on the WindowHostManager.

BUG=468485, 467822
Committed: https://crrev.com/26a76588cae292fd7150c926e90c2e23d44be892
Cr-Commit-Position: refs/heads/master@{#322001}

[dnicoara, 2015-03-24 14:52:44]

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

[alexst (slow to review), 2015-03-24 14:56:04]

lgtm

[dnicoara, 2015-03-24 14:56:19]

The CQ bit was checked by dnicoara@chromium.org

[commit-bot: I haz the power, 2015-03-24 14:56:44]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1011533003/1

[dnicoara, 2015-03-24 14:58:52]

The CQ bit was unchecked by dnicoara@chromium.org

[dnicoara, 2015-03-24 15:03:21]

The CQ bit was checked by dnicoara@chromium.org

[dnicoara, 2015-03-24 15:03:22]

The patchset sent to the CQ was uploaded after l-g-t-m from alexst@chromium.org
Link to the patchset: https://codereview.chromium.org/1011533003/#ps20001
(title: ".")

[commit-bot: I haz the power, 2015-03-24 15:03:34]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1011533003/20001

[commit-bot: I haz the power, 2015-03-24 15:26:45]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2015-03-24 15:27:23]

Patchset 2 (id:??) landed as
https://crrev.com/26a76588cae292fd7150c926e90c2e23d44be892
Cr-Commit-Position: refs/heads/master@{#322001}