Fix issues with RestartingSendStreamPreservesRtpStatesWithRtx

Fix issues with RestartingSendStreamPreservesRtpStatesWithRtx
double check rtp_sender in sending mode when altering sequence_number
adjust test to skip validating timestamp on rtx streams
fix test by waiting for all 3 media streams instead of 3 out 6 media and rtx streams.

BUG=webrtc:4332
Committed: https://crrev.com/32cd2c4103e7a84a5167a59973054dfca92bae74
Cr-Commit-Position: refs/heads/master@{#13587}

[danilchap, 2016-07-22 15:04:25]

Description was changed from

==========
Fix issues with RestartingSendStreamPreservesRtpStatesWithRtx
double check rtp_sender in sending mode when altering sequence_number
adjust test to skip validating timestamp on rtx stream
fix test by waiting for all 3 media stream with data instead
 of 3 out 6 media and rtx streams.

BUG=webrtc:4332
==========

to

==========
Fix issues with RestartingSendStreamPreservesRtpStatesWithRtx
double check rtp_sender in sending mode when altering sequence_number
adjust test to skip validating timestamp on rtx streams
fix test by waiting for all 3 media streams instead of 3 out 6 media and rtx
streams.

BUG=webrtc:4332
==========

[danilchap, 2016-07-22 15:30:19]

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

[danilchap, 2016-07-22 15:30:19]

Before the changes the test failed every ~100 runs.
After the changes run it 40000 times without failure.
PTAL

[stefan-webrtc, 2016-08-01 11:17:04]

lgtm

[danilchap, 2016-08-01 11:29:28]

The CQ bit was checked by danilchap@webrtc.org

[commit-bot: I haz the power, 2016-08-01 11:29:37]

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, 2016-08-01 11:30:46]

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

[commit-bot: I haz the power, 2016-08-01 11:30:47]

Try jobs failed on following builders:
  android_compile_x64_dbg on master.tryserver.webrtc (JOB_FAILED,
http://build.chromium.org/p/tryserver.webrtc/builders/android_compile_x64_dbg...)
  android_compile_x86_dbg on master.tryserver.webrtc (JOB_FAILED,
http://build.chromium.org/p/tryserver.webrtc/builders/android_compile_x86_dbg...)
  android_compile_x86_rel on master.tryserver.webrtc (JOB_FAILED,
http://build.chromium.org/p/tryserver.webrtc/builders/android_compile_x86_rel...)
  android_gn_dbg on master.tryserver.webrtc (JOB_FAILED,
http://build.chromium.org/p/tryserver.webrtc/builders/android_gn_dbg/builds/1...)
  android_gn_rel on master.tryserver.webrtc (JOB_FAILED,
http://build.chromium.org/p/tryserver.webrtc/builders/android_gn_rel/builds/1...)
  ios64_gn_dbg on master.tryserver.webrtc (JOB_FAILED,
http://build.chromium.org/p/tryserver.webrtc/builders/ios64_gn_dbg/builds/1463)
  ios64_gn_rel on master.tryserver.webrtc (JOB_FAILED,
http://build.chromium.org/p/tryserver.webrtc/builders/ios64_gn_rel/builds/1487)
  ios64_sim_dbg on master.tryserver.webrtc (JOB_FAILED,
http://build.chromium.org/p/tryserver.webrtc/builders/ios64_sim_dbg/builds/9196)
  ios_api_framework on master.tryserver.webrtc (JOB_FAILED,
http://build.chromium.org/p/tryserver.webrtc/builders/ios_api_framework/build...)
  ios_arm64_dbg on master.tryserver.webrtc (JOB_FAILED,
http://build.chromium.org/p/tryserver.webrtc/builders/ios_arm64_dbg/builds/11513)
  ios_arm64_rel on master.tryserver.webrtc (JOB_FAILED,
http://build.chromium.org/p/tryserver.webrtc/builders/ios_arm64_rel/builds/11441)
  ios_dbg on master.tryserver.webrtc (JOB_FAILED,
http://build.chromium.org/p/tryserver.webrtc/builders/ios_dbg/builds/16751)
  ios_rel on master.tryserver.webrtc (JOB_FAILED,
http://build.chromium.org/p/tryserver.webrtc/builders/ios_rel/builds/15398)
  linux_asan on master.tryserver.webrtc (JOB_FAILED,
http://build.chromium.org/p/tryserver.webrtc/builders/linux_asan/builds/16381)
  linux_libfuzzer_rel on master.tryserver.webrtc (JOB_FAILED,
http://build.chromium.org/p/tryserver.webrtc/builders/linux_libfuzzer_rel/bui...)
  linux_rel on master.tryserver.webrtc (JOB_FAILED,
http://build.chromium.org/p/tryserver.webrtc/builders/linux_rel/builds/16851)
  linux_tsan2 on master.tryserver.webrtc (JOB_FAILED,
http://build.chromium.org/p/tryserver.webrtc/builders/linux_tsan2/builds/13849)
  linux_ubsan on master.tryserver.webrtc (JOB_FAILED,
http://build.chromium.org/p/tryserver.webrtc/builders/linux_ubsan/builds/3725)
  linux_ubsan_vptr on master.tryserver.webrtc (JOB_FAILED,
http://build.chromium.org/p/tryserver.webrtc/builders/linux_ubsan_vptr/builds...)
  mac_baremetal on master.tryserver.webrtc (JOB_FAILED,
http://build.chromium.org/p/tryserver.webrtc/builders/mac_baremetal/builds/13009)
  mac_compile_dbg on master.tryserver.webrtc (JOB_FAILED,
http://build.chromium.org/p/tryserver.webrtc/builders/mac_compile_dbg/builds/...)
  mac_gn_dbg on master.tryserver.webrtc (JOB_FAILED,
http://build.chromium.org/p/tryserver.webrtc/builders/mac_gn_dbg/builds/4908)
  mac_gn_rel on master.tryserver.webrtc (JOB_FAILED,
http://build.chromium.org/p/tryserver.webrtc/builders/mac_gn_rel/builds/11118)
  mac_rel on master.tryserver.webrtc (JOB_FAILED,
http://build.chromium.org/p/tryserver.webrtc/builders/mac_rel/builds/16826)
  presubmit on master.tryserver.webrtc (JOB_FAILED,
http://build.chromium.org/p/tryserver.webrtc/builders/presubmit/builds/7089)

[danilchap, 2016-08-01 13:55:50]

The CQ bit was checked by danilchap@webrtc.org

[danilchap, 2016-08-01 13:55:50]

The patchset sent to the CQ was uploaded after l-g-t-m from stefan@webrtc.org
Link to the patchset: https://codereview.webrtc.org/2177523002/#ps20001 (title:
"rebase")

[commit-bot: I haz the power, 2016-08-01 13:55:59]

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, 2016-08-01 13:58:38]

Description was changed from

==========
Fix issues with RestartingSendStreamPreservesRtpStatesWithRtx
double check rtp_sender in sending mode when altering sequence_number
adjust test to skip validating timestamp on rtx streams
fix test by waiting for all 3 media streams instead of 3 out 6 media and rtx
streams.

BUG=webrtc:4332
==========

to

==========
Fix issues with RestartingSendStreamPreservesRtpStatesWithRtx
double check rtp_sender in sending mode when altering sequence_number
adjust test to skip validating timestamp on rtx streams
fix test by waiting for all 3 media streams instead of 3 out 6 media and rtx
streams.

BUG=webrtc:4332
==========

[commit-bot: I haz the power, 2016-08-01 13:58:39]

Committed patchset #2 (id:20001)

[commit-bot: I haz the power, 2016-08-01 13:58:47]

Description was changed from

==========
Fix issues with RestartingSendStreamPreservesRtpStatesWithRtx
double check rtp_sender in sending mode when altering sequence_number
adjust test to skip validating timestamp on rtx streams
fix test by waiting for all 3 media streams instead of 3 out 6 media and rtx
streams.

BUG=webrtc:4332
==========

to

==========
Fix issues with RestartingSendStreamPreservesRtpStatesWithRtx
double check rtp_sender in sending mode when altering sequence_number
adjust test to skip validating timestamp on rtx streams
fix test by waiting for all 3 media streams instead of 3 out 6 media and rtx
streams.

BUG=webrtc:4332

Committed: https://crrev.com/32cd2c4103e7a84a5167a59973054dfca92bae74
Cr-Commit-Position: refs/heads/master@{#13587}
==========

[commit-bot: I haz the power, 2016-08-01 13:58:48]

Patchset 2 (id:??) landed as
https://crrev.com/32cd2c4103e7a84a5167a59973054dfca92bae74
Cr-Commit-Position: refs/heads/master@{#13587}