Add some paramtraits to ipc fuzzer.

Add some paramtraits to ipc fuzzer.

R=mbarbella@chromium.org, tsepez@chromium.org
BUG=450268
Committed: https://chromium.googlesource.com/chromium/src/+/dc3b3b465af06558ea7947b6be0318833ecc8cef

[Martin Barbella, 2015-01-26 19:22:29]

lgtm

[inferno, 2015-01-26 19:23:23]

The CQ bit was checked by inferno@chromium.org

[commit-bot: I haz the power, 2015-01-26 19:25:16]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/873233003/20001

[commit-bot: I haz the power, 2015-01-26 19:25:17]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2015-01-26 19:25:18]

No LGTM from a valid reviewer yet. Only full committers are accepted.
Even if an LGTM may have been provided, it was from a non-committer,
_not_ a full super star committer.
See http://www.chromium.org/getting-involved/become-a-committer
Note that this has nothing to do with OWNERS files.

[Tom Sepez, 2015-01-26 21:20:14]

lgtm

[commit-bot: I haz the power, 2015-01-26 21:24:20]

Patchset 2 (id:??) landed as
https://crrev.com/dc3b3b465af06558ea7947b6be0318833ecc8cef
Cr-Commit-Position: refs/heads/master@{#313138}

[inferno, 2015-01-26 21:24:28]

Committed patchset #2 (id:20001) manually as
dc3b3b465af06558ea7947b6be0318833ecc8cef (presubmit successful).