Remove NullObjectReceiveStatistics() in rtp_rtcp module

Remove NullObjectReceiveStatistics() in rtp_rtcp module
use (already supported) nullptr as indication for no statistics

BUG=webrtc:8016
Review-Url: https://codereview.webrtc.org/2983363002
Cr-Commit-Position: refs/heads/master@{#19129}
Committed: https://chromium.googlesource.com/external/webrtc/+/d3f3c3497bad07a5346269d4e5b2afda7c266cc2

[danilchap, 2017-07-24 16:45:26]

Description was changed from

==========
Remove NullReceiveStatistics
use supported nullptr as default for no statistics

BUG=webrtc:8016
==========

to

==========
Remove NullObjectReceiveStatistics() in rtp_rtcp module
use (already supported) nullptr as indication for no statistics

BUG=webrtc:8016
==========

[danilchap, 2017-07-24 16:50:42]

danilchap@webrtc.org changed reviewers:
+ eladalon@webrtc.org

[eladalon, 2017-07-25 10:28:03]

lgtm

[eladalon, 2017-07-25 10:28:05]

lgtm

[eladalon, 2017-07-25 10:28:24]

On 2017/07/25 10:28:05, eladalon wrote:
> lgtm

Odd interface... :-)

[danilchap, 2017-07-25 10:37:36]

The CQ bit was checked by danilchap@webrtc.org

[commit-bot: I haz the power, 2017-07-25 10:37:47]

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, 2017-07-25 11:20:13]

CQ is committing da patch.

Bot data: {"patchset_id": 1, "attempt_start_ts": 1500979056633410, "parent_rev":
"a04d9c31a06f210ba06ca4f618250641060f9a5c", "commit_rev":
"d3f3c3497bad07a5346269d4e5b2afda7c266cc2"}

[commit-bot: I haz the power, 2017-07-25 11:20:18]

Description was changed from

==========
Remove NullObjectReceiveStatistics() in rtp_rtcp module
use (already supported) nullptr as indication for no statistics

BUG=webrtc:8016
==========

to

==========
Remove NullObjectReceiveStatistics() in rtp_rtcp module
use (already supported) nullptr as indication for no statistics

BUG=webrtc:8016

Review-Url: https://codereview.webrtc.org/2983363002
Cr-Commit-Position: refs/heads/master@{#19129}
Committed:
https://chromium.googlesource.com/external/webrtc/+/d3f3c3497bad07a5346269d4e...
==========

[commit-bot: I haz the power, 2017-07-25 11:20:19]

Committed patchset #1 (id:1) as
https://chromium.googlesource.com/external/webrtc/+/d3f3c3497bad07a5346269d4e...