cc: Changed some perftest names that don't reflect functionality tested.

cc: Changed some perftest names that don't reflect functionality tested.

This patch renames some perftests that better reflect the functionality
that they test.

R=danakj, enne

Committed: https://crrev.com/4eef2d89fe5002e5a42543935d9221f833d17ab4
Cr-Commit-Position: refs/heads/master@{#309347}

[vmpstr, 2014-12-20 00:35:05]

ptal

[danakj, 2014-12-20 07:08:57]

lgtm

[danakj, 2014-12-20 07:09:00]

The CQ bit was checked by danakj@chromium.org

[commit-bot: I haz the power, 2014-12-20 07:09:59]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/816163002/1

[commit-bot: I haz the power, 2014-12-20 16:05:33]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2014-12-20 16:06:30]

Patchset 1 (id:??) landed as
https://crrev.com/4eef2d89fe5002e5a42543935d9221f833d17ab4
Cr-Commit-Position: refs/heads/master@{#309347}