Revert of Allow custom metrics implementations on Android.

Revert of Allow custom metrics implementations on Android. (patchset #11 id:260001 of https://codereview.webrtc.org/2403463002/ )

Reason for revert:
Break downstream tests.

Original issue's description:
> Allow custom metrics implementations on Android.
>
> BUG=webrtc:6499
>
> Committed: https://crrev.com/de609b26c5fc77fd3388eae5594ee8a634edf8da
> Cr-Commit-Position: refs/heads/master@{#15169}

TBR=kjellander@webrtc.org,magjed@webrtc.org,sakal@webrtc.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=webrtc:6499
Committed: https://crrev.com/f570a2804ed8af6f6586f4aea51e089bd55d7e42
Cr-Commit-Position: refs/heads/master@{#15171}

[philipel, 2016-11-21 16:29:42]

The CQ bit was checked by philipel@webrtc.org

[philipel, 2016-11-21 16:29:43]

Created Revert of Allow custom metrics implementations on Android.

[commit-bot: I haz the power, 2016-11-21 16:29:52]

CQ is trying da patch. Follow status at
 
https://chromium-cq-status.appspot.com/v2/patch-status/codereview.webrtc.org/...

[commit-bot: I haz the power, 2016-11-21 16:29:59]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1479745782249610, "parent_rev":
"c39b86882a45f5e4ce3337468c5de237b6a3e99b", "commit_rev":
"5aff43493d765fe86407eb22b253aed463516358"}

[commit-bot: I haz the power, 2016-11-21 16:30:02]

Committed patchset #1 (id:1)

[commit-bot: I haz the power, 2016-11-21 16:30:14]

Description was changed from

==========
Revert of Allow custom metrics implementations on Android. (patchset #11
id:260001 of https://codereview.webrtc.org/2403463002/ )

Reason for revert:
Break downstream tests.

Original issue's description:
> Allow custom metrics implementations on Android.
> 
> BUG=webrtc:6499
> 
> Committed: https://crrev.com/de609b26c5fc77fd3388eae5594ee8a634edf8da
> Cr-Commit-Position: refs/heads/master@{#15169}

TBR=kjellander@webrtc.org,magjed@webrtc.org,sakal@webrtc.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=webrtc:6499
==========

to

==========
Revert of Allow custom metrics implementations on Android. (patchset #11
id:260001 of https://codereview.webrtc.org/2403463002/ )

Reason for revert:
Break downstream tests.

Original issue's description:
> Allow custom metrics implementations on Android.
>
> BUG=webrtc:6499
>
> Committed: https://crrev.com/de609b26c5fc77fd3388eae5594ee8a634edf8da
> Cr-Commit-Position: refs/heads/master@{#15169}

TBR=kjellander@webrtc.org,magjed@webrtc.org,sakal@webrtc.org
# Skipping CQ checks because original CL landed less than 1 days ago.
NOPRESUBMIT=true
NOTREECHECKS=true
NOTRY=true
BUG=webrtc:6499

Committed: https://crrev.com/f570a2804ed8af6f6586f4aea51e089bd55d7e42
Cr-Commit-Position: refs/heads/master@{#15171}
==========

[commit-bot: I haz the power, 2016-11-21 16:30:15]

Patchset 1 (id:??) landed as
https://crrev.com/f570a2804ed8af6f6586f4aea51e089bd55d7e42
Cr-Commit-Position: refs/heads/master@{#15171}

[kjellander_webrtc, 2016-11-21 20:41:45]

lgtm

[sakal, 2016-11-22 08:10:08]

A revert of this CL (patchset #1 id:1) has been created in
https://codereview.webrtc.org/2518293002/ by sakal@webrtc.org.

The reason for reverting is: Fix downstream..