cleanup RTCPSender

cleanup RTCPSender
rtc::scoped_ptr -> std::unique_ptr.
CrticalSectionWrapper -> CriticalSection.
assert -> DCHECK.
removed unused headers.
removed unused using.
removed unused member field.

BUG=webrtc:5520, webrtc:5565
R=åsapersson

Committed: https://crrev.com/56036ffc45765a2fd6c849a87835b475cb608d9b
Cr-Commit-Position: refs/heads/master@{#12091}

[åsapersson, 2016-03-22 14:25:33]

lgtm

[danilchap, 2016-03-22 14:26:18]

The CQ bit was checked by danilchap@webrtc.org

[commit-bot: I haz the power, 2016-03-22 14:26:21]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1806603002/20001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1806603002/20001

[commit-bot: I haz the power, 2016-03-22 14:30:11]

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

[commit-bot: I haz the power, 2016-03-22 14:30:12]

Try jobs failed on following builders:
  win_drmemory_light on tryserver.webrtc (JOB_FAILED,
http://build.chromium.org/p/tryserver.webrtc/builders/win_drmemory_light/buil...)

[danilchap, 2016-03-22 15:27:06]

The CQ bit was checked by danilchap@webrtc.org

[danilchap, 2016-03-22 15:27:06]

The patchset sent to the CQ was uploaded after l-g-t-m from
asapersson@webrtc.org
Link to the patchset: https://codereview.webrtc.org/1806603002/#ps40001 (title:
" ")

[commit-bot: I haz the power, 2016-03-22 15:27:10]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1806603002/40001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1806603002/40001

[commit-bot: I haz the power, 2016-03-22 17:27:43]

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

[commit-bot: I haz the power, 2016-03-22 17:27:44]

Try jobs failed on following builders:
  android_arm64_rel on tryserver.webrtc (JOB_TIMED_OUT, no build URL)
  linux_baremetal on tryserver.webrtc (JOB_TIMED_OUT, no build URL)
  win_baremetal on tryserver.webrtc (JOB_TIMED_OUT, no build URL)

[danilchap, 2016-03-22 17:59:12]

The CQ bit was checked by danilchap@webrtc.org

[commit-bot: I haz the power, 2016-03-22 17:59:15]

CQ is trying da patch. Follow status at
 https://chromium-cq-status.appspot.com/patch-status/1806603002/40001
View timeline at
 https://chromium-cq-status.appspot.com/patch-timeline/1806603002/40001

[commit-bot: I haz the power, 2016-03-22 18:14:13]

Committed patchset #3 (id:40001)

[commit-bot: I haz the power, 2016-03-22 18:14:20]

Description was changed from

==========
cleanup RTCPSender
rtc::scoped_ptr -> std::unique_ptr.
CrticalSectionWrapper -> CriticalSection.
assert -> DCHECK.
removed unused headers.
removed unused using.
removed unused member field.

BUG=webrtc:5520, webrtc:5565
R=åsapersson
==========

to

==========
cleanup RTCPSender
rtc::scoped_ptr -> std::unique_ptr.
CrticalSectionWrapper -> CriticalSection.
assert -> DCHECK.
removed unused headers.
removed unused using.
removed unused member field.

BUG=webrtc:5520, webrtc:5565
R=åsapersson

Committed: https://crrev.com/56036ffc45765a2fd6c849a87835b475cb608d9b
Cr-Commit-Position: refs/heads/master@{#12091}
==========

[commit-bot: I haz the power, 2016-03-22 18:14:21]

Patchset 3 (id:??) landed as
https://crrev.com/56036ffc45765a2fd6c849a87835b475cb608d9b
Cr-Commit-Position: refs/heads/master@{#12091}