Revert of Convert startup_metric_utils to use mojo.

Revert of Convert startup_metric_utils to use mojo. (patchset #6 id:240001 of https://codereview.chromium.org/2022413002/ )

Reason for revert:
Breaks mac compilation.

Original issue's description:
> Convert startup_metric_utils to use mojo.
>
> BUG=577685
> TBR=jochen@chromium.org
>
> Committed: https://crrev.com/089f995b33d52e072a1a00c0302116fb9d4e49fb
> Cr-Commit-Position: refs/heads/master@{#398781}

TBR=dcheng@chromium.org,erikchen@chromium.org,sky@chromium.org,jochen@chromium.org,sammc@chromium.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=577685
Committed: https://crrev.com/95bd969a8e6fdabf9cc3926fd4f5031cdbfcb7d4
Cr-Commit-Position: refs/heads/master@{#398816}

[battre, 2016-06-09 08:30:41]

The CQ bit was checked by battre@chromium.org

[battre, 2016-06-09 08:30:42]

Created Revert of Convert startup_metric_utils to use mojo.

[commit-bot: I haz the power, 2016-06-09 08:30:50]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/2048033004/1

[commit-bot: I haz the power, 2016-06-09 08:32:18]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-06-09 08:33:54]

Description was changed from

==========
Revert of Convert startup_metric_utils to use mojo. (patchset #6 id:240001 of
https://codereview.chromium.org/2022413002/ )

Reason for revert:
Breaks mac compilation.

Original issue's description:
> Convert startup_metric_utils to use mojo.
> 
> BUG=577685
> TBR=jochen@chromium.org
> 
> Committed: https://crrev.com/089f995b33d52e072a1a00c0302116fb9d4e49fb
> Cr-Commit-Position: refs/heads/master@{#398781}

TBR=dcheng@chromium.org,erikchen@chromium.org,sky@chromium.org,jochen@chromiu...
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=577685
==========

to

==========
Revert of Convert startup_metric_utils to use mojo. (patchset #6 id:240001 of
https://codereview.chromium.org/2022413002/ )

Reason for revert:
Breaks mac compilation.

Original issue's description:
> Convert startup_metric_utils to use mojo.
>
> BUG=577685
> TBR=jochen@chromium.org
>
> Committed: https://crrev.com/089f995b33d52e072a1a00c0302116fb9d4e49fb
> Cr-Commit-Position: refs/heads/master@{#398781}

TBR=dcheng@chromium.org,erikchen@chromium.org,sky@chromium.org,jochen@chromiu...
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=577685

Committed: https://crrev.com/95bd969a8e6fdabf9cc3926fd4f5031cdbfcb7d4
Cr-Commit-Position: refs/heads/master@{#398816}
==========

[commit-bot: I haz the power, 2016-06-09 08:33:55]

Patchset 1 (id:??) landed as
https://crrev.com/95bd969a8e6fdabf9cc3926fd4f5031cdbfcb7d4
Cr-Commit-Position: refs/heads/master@{#398816}