Apply automatic range checks to storage enum types across IPC.

Apply automatic range checks to storage enum types across IPC.

This is part of a long-running background task to remove the remaining
uses of the unchecked IPC_ENUM_TRAITS() macro.

BUG=246708
Committed: https://crrev.com/23ba66181008a9d9b40c7df97cc2497b7a82ac6f
Cr-Commit-Position: refs/heads/master@{#296887}

[anujsharma, 2014-09-25 09:00:37]

anujk.sharma@samsung.com changed reviewers:
+ nasko@chromium.org, piman@chromium.org

[anujsharma, 2014-09-25 09:00:37]

piman@chromium.org: Please review changes in storage module

nasko@chromium.org: Please review changes in content module

[nasko, 2014-09-25 16:27:30]

LGTM

[piman, 2014-09-25 17:57:41]

lgtm

[anujsharma, 2014-09-26 03:20:53]

The CQ bit was checked by anujk.sharma@samsung.com

[commit-bot: I haz the power, 2014-09-26 03:21:31]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/603673003/1

[commit-bot: I haz the power, 2014-09-26 05:04:37]

Committed patchset #1 (id:1) as 587592085e6b30193c99d63dd3e1940d33b29f6d

[commit-bot: I haz the power, 2014-09-26 05:05:16]

Patchset 1 (id:??) landed as
https://crrev.com/23ba66181008a9d9b40c7df97cc2497b7a82ac6f
Cr-Commit-Position: refs/heads/master@{#296887}