Revert of ozone: Remove singleton pattern for SurfaceFactoryOzone.

Revert of ozone: Remove singleton pattern for SurfaceFactoryOzone. (patchset #1 id:1 of https://codereview.chromium.org/1159493010/)

Reason for revert:
Broke Linux ChromiumOS compile.
http://build.chromium.org/p/chromium.chromiumos/builders/Linux%20ChromiumOS%20Ozone%20Builder/builds/17764/steps/compile/logs/stdio#error1

Original issue's description:
> ozone: Remove singleton pattern for SurfaceFactoryOzone.
>
> OzonePlatform is sigleton already, so it's not necessary for
> SurfaceFactoryOzone to be singleton.
>
> Committed: https://crrev.com/48b0a7165bd6c9d889fc6d6959a6e59cf7ef9dc6
> Cr-Commit-Position: refs/heads/master@{#332889}

TBR=spang@chromium.org,sievers@chromium.org,alexst@chromium.org,dongseong.hwang@intel.com
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true

Committed: https://crrev.com/de77023ebd80bf7f55fc470cb325a7feffd4e2b2
Cr-Commit-Position: refs/heads/master@{#332899}

[Nicolas Zea, 2015-06-04 20:24:57]

Created Revert of ozone: Remove singleton pattern for SurfaceFactoryOzone.

[commit-bot: I haz the power, 2015-06-04 20:25:48]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1167533007/1

[commit-bot: I haz the power, 2015-06-04 20:27:42]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-06-04 20:28:36]

Patchset 1 (id:??) landed as
https://crrev.com/de77023ebd80bf7f55fc470cb325a7feffd4e2b2
Cr-Commit-Position: refs/heads/master@{#332899}