Convert Obj-C 2.0 syntax to Obj-C 1.0

Obj-C 2.0 allows to declare ivars in @implementation section.
Obj-C 1.0 only allows to declare ivars in @interface section.

Committed: https://crrev.com/8c700e2511ed9c93b7245a525238086b88c2ee34
Cr-Commit-Position: refs/heads/master@{#316236}

[dvh, 2015-02-12 18:43:06]

dvh@chromium.org changed reviewers:
+ armansito@chromium.org

[Michael Achenbach, 2015-02-13 09:14:52]

machenbach@chromium.org changed reviewers:
+ machenbach@chromium.org

[Michael Achenbach, 2015-02-13 09:14:53]

lgtm (rubber-stamp)

[armansito, 2015-02-13 16:16:26]

lgtm

[dvh, 2015-02-13 17:06:34]

The CQ bit was checked by dvh@chromium.org

[commit-bot: I haz the power, 2015-02-13 17:07:12]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/917063004/1

[commit-bot: I haz the power, 2015-02-13 17:38:55]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-02-13 17:39:27]

Patchset 1 (id:??) landed as
https://crrev.com/8c700e2511ed9c93b7245a525238086b88c2ee34
Cr-Commit-Position: refs/heads/master@{#316236}

[Michael Achenbach, 2015-02-13 20:40:40]

This helped thanks.