Revert of Revert of telemetry: Clean up SurfaceFlinger statistics

Revert of Revert of telemetry: Clean up SurfaceFlinger statistics (patchset #1 id:1 of https://codereview.chromium.org/809753002/)

Reason for revert:
Relanding, this patch was not the culprit. Sorry.

Original issue's description:
> Revert of telemetry: Clean up SurfaceFlinger statistics (patchset #8 id:140001 of https://codereview.chromium.org/765773004/)
>
> Reason for revert:
> Perf sheriff here, speculatively reverting due to crbug.com/442752, it shows up in many blamelists (but not all as the test wasn't running due to another bug). Sorry if unrelated.
>
> Original issue's description:
> > PERF-SHERIFFS: This patch will change all smoothness and SurfaceFlinger metrics on Android. Some metrics may go up or down significantly, with the new values being more accurate.
> >
> > This patch cleans up the integration of SurfaceFlinger statistics by pulling the
> > raw timestamps into the timeline and calculating all metrics in
> > SmoothnessMetric. This approach also improves the metrics, because the
> > timeline ranges can now be properly bounded (no more percentiles!) and the
> > existing smoothness metrics can also use the more accurate SurfaceFlinger
> > timestamps.
> >
> > BUG=351916
> >
> > Committed: https://crrev.com/ebae600f54ed1e77eeba916635310fb176c0fb6c
> > Cr-Commit-Position: refs/heads/master@{#308488}
>
> TBR=tonyg@chromium.org,dtu@chromium.org,nednguyen@google.com,chrishenry@google.com,skyostil@google.com,sullivan@chromium.org,skyostil@chromium.org,jbudorick@chromium.org,ernstm@chromium.org
> NOTREECHECKS=true
> NOTRY=true
> BUG=351916
>
> Committed: https://crrev.com/3dfc4e90757197efe0855fd4889d32bc52cb4cf9
> Cr-Commit-Position: refs/heads/master@{#308594}

TBR=tonyg@chromium.org,dtu@chromium.org,nednguyen@google.com,chrishenry@google.com,skyostil@google.com,sullivan@chromium.org,skyostil@chromium.org,jbudorick@chromium.org,ernstm@chromium.org
NOTREECHECKS=true
NOTRY=true
BUG=351916
Committed: https://crrev.com/e2f820e34c43102785cfc9f38bde8b5a052938b8
Cr-Commit-Position: refs/heads/master@{#308608}

[bokan, 2014-12-16 17:49:22]

Created Revert of Revert of telemetry: Clean up SurfaceFlinger statistics

[commit-bot: I haz the power, 2014-12-16 17:49:51]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/804413002/1

[commit-bot: I haz the power, 2014-12-16 17:50:59]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2014-12-16 17:51:47]

Patchset 1 (id:??) landed as
https://crrev.com/e2f820e34c43102785cfc9f38bde8b5a052938b8
Cr-Commit-Position: refs/heads/master@{#308608}