Add reporting of googContentType via GetStats on send side

Add reporting of googContentType via GetStats on send side

BUG=webrtc:8174
Review-Url: https://codereview.webrtc.org/3005193002
Cr-Commit-Position: refs/heads/master@{#19719}
Committed: https://chromium.googlesource.com/external/webrtc/+/50864a8f4b911cce51aec715985a929cad86c688

[ilnik, 2017-09-06 12:25:45]

The CQ bit was checked by ilnik@webrtc.org to run a CQ dry run

[commit-bot: I haz the power, 2017-09-06 12:25:49]

Dry run: 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, 2017-09-06 13:03:19]

The CQ bit was unchecked by commit-bot@chromium.org

[commit-bot: I haz the power, 2017-09-06 13:03:20]

Dry run: This issue passed the CQ dry run.

[ilnik, 2017-09-06 14:25:18]

ilnik@webrtc.org changed reviewers:
+ sprang@webrtc.org, stefan@webrtc.org

[sprang_webrtc, 2017-09-06 14:41:54]

lgtm

[stefan-webrtc, 2017-09-06 14:43:37]

lgtm

[ilnik, 2017-09-06 14:44:11]

The CQ bit was checked by ilnik@webrtc.org

[commit-bot: I haz the power, 2017-09-06 14:44:21]

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, 2017-09-06 19:32:36]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1504709051700210, "parent_rev":
"d7b3d390c78f674c1c0942bd13b1739cc9ef62ff", "commit_rev":
"50864a8f4b911cce51aec715985a929cad86c688"}

[commit-bot: I haz the power, 2017-09-06 19:32:40]

Description was changed from

==========
Add reporting of googContentType via GetStats on send side

BUG=webrtc:8174
==========

to

==========
Add reporting of googContentType via GetStats on send side

BUG=webrtc:8174

Review-Url: https://codereview.webrtc.org/3005193002
Cr-Commit-Position: refs/heads/master@{#19719}
Committed:
https://chromium.googlesource.com/external/webrtc/+/50864a8f4b911cce51aec7159...
==========

[commit-bot: I haz the power, 2017-09-06 19:32:41]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/external/webrtc/+/50864a8f4b911cce51aec7159...