Enable the Rightware Browsermark benchmark

Enable the Rightware Browsermark benchmark

This patch un-disables the rightware browsermark benchmark. Manually
testing shows this finishes in under 5m on a Nexus 5.

BUG=423018
Committed: https://crrev.com/6c816144b656046b41cd0cc3bce167e9a3a9febc
Cr-Commit-Position: refs/heads/master@{#299369}

[pdr., 2014-10-13 19:46:18]

pdr@chromium.org changed reviewers:
+ qyearsley@chromium.org, wangxianzhu@chromium.org

[tonyg, 2014-10-13 20:04:24]

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

[tonyg, 2014-10-13 20:04:24]

The CQ bit was checked by tonyg@chromium.org

[tonyg, 2014-10-13 20:04:25]

lgtm

[commit-bot: I haz the power, 2014-10-13 20:05:31]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/649283002/1

[commit-bot: I haz the power, 2014-10-13 21:35:28]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2014-10-13 21:36:04]

Patchset 1 (id:??) landed as
https://crrev.com/6c816144b656046b41cd0cc3bce167e9a3a9febc
Cr-Commit-Position: refs/heads/master@{#299369}

[pdr., 2014-10-13 23:58:31]

A revert of this CL (patchset #1 id:1) has been created in
https://codereview.chromium.org/649353003/ by pdr@chromium.org.

The reason for reverting is: Temporarily disable the Rightware Browsermark
benchmark.