Roll WebRTC 17267:17295 (23 commits)

Changes: https://chromium.googlesource.com/external/webrtc/trunk/webrtc.git/+log/c0a0f8d..4491b9e

$ git log c0a0f8d..4491b9e --date=short --no-merges --format=%ad %ae %s
2017-03-17 tommi@webrtc.org Delete unused test code in modules/video_coding/test/
2017-03-17 elad.alon@webrtc.org Potential race-condition resolution in CongestionController::min_bitrate_bps_
2017-03-17 nisse@webrtc.org Delete unused member RTCPSender::FeedbackState::send_payload_type.
2017-03-17 brandtr@webrtc.org Minor FlexFEC fixes.
2017-03-17 terelius@webrtc.org Use RTC_UNUSED instead of conditional compilation in BWE simulator tool.
2017-03-17 stefan@webrtc.org Fix crash on multiple feedback messages are received on old transport.
2017-03-17 philipel@webrtc.org Reland of Save width/height of SPS nalus and restore them on the first packet of an IDR. (patchset #1 id:1 of https://codereview.webrtc.org/2754543005/ )
2017-03-17 ilnik@webrtc.org Reland of write frame generator capturer to use TaskQueue instead of EventTimeWrapper (patchset #1 id:1 of https://codereview.webrtc.org/2751063005/ )
2017-03-17 tommi@webrtc.org Delete unused method VideoCodingModule::DiscardedPackets().
2017-03-17 tommi@webrtc.org Delete unsupported method VideoCodingModule::RegisterDecoderTimingCallback. The implementation behind this method has been a noop for a long time.
2017-03-17 henrika@webrtc.org Adds unit test for ADM on Linux
2017-03-17 tommi@webrtc.org Provide default impl of TimeUntilNextProcess in MockRtpRtcp instead of mocking.
2017-03-17 ehmaldonado@webrtc.org GN: Make //webrtc/test:fileutils visible only to //webrtc/test.
2017-03-17 kthelgason@webrtc.org Revert of Reland: Use native (optimized) functions for byte order conversion. (patchset #5 id:80001 of https://codereview.webrtc.org/2751403003/ )
2017-03-17 kthelgason@webrtc.org Delete unused classes from stream.cc
2017-03-16 jbauch@webrtc.org Reland: Use native (optimized) functions for byte order conversion.
2017-03-16 jbauch@webrtc.org Revert of Use native (optimized) functions for byte order conversion. (patchset #3 id:40001 of https://codereview.webrtc.org/2738063005/ )
2017-03-16 jbauch@webrtc.org Use native (optimized) functions for byte order conversion.
2017-03-16 ilnik@webrtc.org Revert of write frame generator capturer to use TaskQueue instead of EventTimeWrapper (patchset #11 id:300001 of https://codereview.webrtc.org/2750473002/ )
2017-03-16 danilchap@webrtc.org Fix rtcp_sender to support sdes with 31 chunk Previosly it supported up to only 15 chunks which is a limit for csrcs in an rtp packet.
2017-03-16 philipel@webrtc.org De-parameterized EndToEndTests.
2017-03-16 nisse@webrtc.org Make ModuleRtpRtcpImpl member variables private.
2017-03-16 ivoc@webrtc.org Added locking when getting echo likelihood stats.

TBR=
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_chromium_archive_rel_ng;master.tryserver.chromium.mac:mac_chromium_archive_rel_ng
BUG=

Review-Url: https://codereview.chromium.org/2758443005
Cr-Commit-Position: refs/heads/master@{#457835}

DEPS

@@ -232,7 +232,7 @@ deps = {
     Var('chromium_git') + '/native_client/src/third_party/scons-2.0.1.git' + '@' + '1c1550e17fc26355d08627fbdec13d8291227067',
 
   'src/third_party/webrtc':
-    Var('chromium_git') + '/external/webrtc/trunk/webrtc.git' + '@' + 'c0a0f8d5f2d5b837b4c6ea447b0cdce86723e0d6', # commit position 17267
+    Var('chromium_git') + '/external/webrtc/trunk/webrtc.git' + '@' + '4491b9eb0296250967ead758ddfa19b085b75632', # commit position 17295
 
   'src/third_party/openmax_dl':
     Var('chromium_git') + '/external/webrtc/deps/third_party/openmax.git' + '@' +  Var('openmax_dl_revision'),