Deprecate STORAGE_EXPORT_PRIVATE macro.

Deprecate STORAGE_EXPORT_PRIVATE macro.

Replace STORAGE_EXPORT_PRIVATE with STORAGE_EXPORT since they are the same.

BUG=552248
Committed: https://crrev.com/89a6a3da5de6e63735b1b54589c2f37a8e5fda9c
Cr-Commit-Position: refs/heads/master@{#358354}

[xhwang, 2015-11-06 07:01:18]

xhwang@chromium.org changed reviewers:
+ kinuko@chromium.org

[xhwang, 2015-11-06 07:01:18]

PTAL

[xhwang, 2015-11-06 07:23:29]

rebase only

[kinuko, 2015-11-06 08:21:42]

lgtm once you address the bot failures.

[xhwang, 2015-11-06 17:33:20]

The CQ bit was checked by xhwang@chromium.org

[xhwang, 2015-11-06 17:33:20]

The patchset sent to the CQ was uploaded after l-g-t-m from kinuko@chromium.org
Link to the patchset: https://chromiumcodereview.appspot.com/1429333002/#ps40001
(title: "fix rebase error")

[commit-bot: I haz the power, 2015-11-06 17:33:57]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1429333002/40001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1429333002/40001

[commit-bot: I haz the power, 2015-11-06 18:24:29]

Committed patchset #3 (id:40001)

[commit-bot: I haz the power, 2015-11-06 18:25:32]

Patchset 3 (id:??) landed as
https://crrev.com/89a6a3da5de6e63735b1b54589c2f37a8e5fda9c
Cr-Commit-Position: refs/heads/master@{#358354}