Switch rasterize_and_record_micro measurement to use RunPageInteractions

Switch rasterize_and_record_micro measurement to use RunPageInteractions.

After  https://codereview.chromium.org/966283002,
https://codereview.chromium.org/926213002,
https://codereview.chromium.org/927763002, all the pages used
with raterize_and_record_micro do not issue any interactions
in RunPageInteractions method, should this change should
not cause any functional changes to how the pages get run.

BUG=418375
Committed: https://crrev.com/e6121de759fd6a262c749f12266efcc8d7b1c953
Cr-Commit-Position: refs/heads/master@{#318943}

[nednguyen, 2015-03-03 20:21:16]

nednguyen@google.com changed reviewers:
+ simonhatch@google.com, sullivan@chromium.org

[nednguyen, 2015-03-03 20:21:16]

+Simon: in situation like this, I would like to run all the
rasterize_and_record_micro benchmarks on cq bot.

[sullivan, 2015-03-03 20:25:20]

lgtm

[nednguyen, 2015-03-03 20:25:31]

The CQ bit was checked by nednguyen@google.com

[shatch, 2015-03-03 20:27:44]

On 2015/03/03 20:21:16, nednguyen wrote:
> +Simon: in situation like this, I would like to run all the
> rasterize_and_record_micro benchmarks on cq bot.

Makes total sense, and will help stop a lot of redness before it ever hits the
waterfall. Not sure how easy it is, looked briefly into this yesterday and I'll
continue later this week when I have some time :)

[commit-bot: I haz the power, 2015-03-03 20:31:12]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/973173002/1

[commit-bot: I haz the power, 2015-03-03 21:30:53]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2015-03-03 21:31:44]

Patchset 1 (id:??) landed as
https://crrev.com/e6121de759fd6a262c749f12266efcc8d7b1c953
Cr-Commit-Position: refs/heads/master@{#318943}