Roll WebRTC 18968:19024 (39 commits)

This roll CL is a copy of a previous one that failed to land due to the gerrit status of the issue itself, "Work in progress". All bots etc however, did pass.
See here: https://chromium-review.googlesource.com/c/571013/1..2

Changes: https://chromium.googlesource.com/external/webrtc/trunk/webrtc.git/+log/f21628f..beaccf9

$ git log f21628f..beaccf9 --date=short --no-merges --format=%ad %ae %s
2017-07-14 magjed@webrtc.org Revert "API for periodically regathering ICE candidates"
2017-07-14 magjed@webrtc.org Revert of iOS - Add iceRegatherIntervalRange. (patchset #1 id:1 of https://codereview.webrtc.org/2976953002/ )
2017-07-14 magjed@webrtc.org Revert "Add additional check when setting RTCConfiguration"
2017-07-14 philipel@webrtc.org Added -show_detector_state which show the detector state in the total bitrate graph.
2017-07-14 saza@webrtc.org Patch set 1: Run a script to replace occurrences of WEBRTC_TRACE logging with the new style, on webrtc/modules/audio_device/linux/audio_device_alsa_linux.cc.
2017-07-14 philipel@webrtc.org RtpFrameReferenceFinder VP8 reference calculation fix.
2017-07-14 tserng@amazon.com Reset isFirstFrameRendered on init of SurfaceViewRenderer
2017-07-13 tkchin@webrtc.org Remove OWNERS check for webrtc/sdk/BUILD.gn
2017-07-13 zijiehe@chromium.org Output DeviceName from various windows ScreenCapturer related implementations
2017-07-13 steveanton@webrtc.org Add additional check when setting RTCConfiguration
2017-07-13 brucedawson@chromium.org Fix DetectNumberOfCores for 32-bit processes
2017-07-13 andersc@webrtc.org Reland of Injectable Obj-C video codecs (patchset #1 id:1 of https://codereview.webrtc.org/2979973002/ )
2017-07-13 sprang@webrtc.org Revert of Injectable Obj-C video codecs (patchset #3 id:400001 of https://codereview.webrtc.org/2981583002/ )
2017-07-13 charujain@webrtc.org Revert of Make the default ctor of rtc::Thread, protected (patchset #3 id:40001 of https://codereview.webrtc.org/2981623002/ )
2017-07-13 andersc@webrtc.org Reland of Injectable Obj-C video codecs (patchset #1 id:1 of https://codereview.webrtc.org/2975963002/ )
2017-07-13 tommi@webrtc.org Make the default ctor of rtc::Thread, protected. The goal is to force use of Thread::Create or Thread::CreateWithSocketServer.
2017-07-13 henrika@webrtc.org Adds sanity check for sample rate on iOS
2017-07-13 sprang@webrtc.org Fix potential incorrect sync flags used with screenshare TL stream.
2017-07-13 tkchin@webrtc.org iOS - Add iceRegatherIntervalRange.
2017-07-13 ilnik@webrtc.org Add rtpdump and rtc log functionality to screenshare_loopback and video_loopback
2017-07-12 zijiehe@chromium.org Fix http://crbug.com/741252
2017-07-12 hbos@webrtc.org RTCStatsCollector: Get track IDs from senders/receivers instead of streams.
2017-07-12 jianj@google.com vp9: Use 2 threads for 360p.
2017-07-12 jianj@google.com vp9: Turn off FRAME_PARALLEL_DECODING.
2017-07-12 zstein@webrtc.org Make BaseChannel::rtp_transport_ a unique_ptr.
2017-07-10 minyue@webrtc.org Reland "Adding ANA config event to debug dump."
2017-07-12 saza@webrtc.org Set memory to all-zero floats in ExtractExtendedBlock in AEC2 if buffer is empty.
2017-07-12 saza@webrtc.org Removes internal buffer memory check in AEC module.
2017-07-11 deadbeef@webrtc.org Reland of Make "set_ignore_non_default_routes" actually use its argument. (patchset #1 id:1 of https://codereview.webrtc.org/2974193002/ )
2017-07-11 deadbeef@webrtc.org Revert of Delete SignalThread class. (patchset #20 id:380001 of https://codereview.webrtc.org/2915253002/ )
2017-07-11 tkchin@webrtc.org Revert of Injectable Obj-C video codecs (patchset #8 id:140001 of https://codereview.webrtc.org/2966023002/ )
2017-07-11 steveanton@webrtc.org API for periodically regathering ICE candidates
2017-07-11 sdefresne@chromium.org Use correct value for CFBundleExecutable and CFBundleName.
2017-07-11 ossu@webrtc.org TransmitMixer: Check GetSendCodec return value.
2017-07-11 ilnik@webrtc.org Reland of Refactor timing frame logic to work with encoders with internal sources (patchset #1 id:1 of https://codereview.webrtc.org/2980533002/ )
2017-07-11 tschumim@webrtc.org Let alr detector use a budged to detect underuse.
2017-07-11 ingemara@opera.com Suppress MissingPrefix using tools attribute
2017-07-11 jianjun.zhu@intel.com Use relative paths in GN files.
2017-07-11 tommi@webrtc.org Remove dependency on rtc::Thread and rtc_base from audio_mixer_unittests. Instead, use a TaskQueue in the only test that required it.

TBR=henrika@chromium.org,magjed@chromium.org
CQ_INCLUDE_TRYBOTS=master.tryserver.chromium.linux:linux_chromium_archive_rel_ng;master.tryserver.chromium.mac:mac_chromium_archive_rel_ng

Bug: 
Change-Id: I3f04c06fdcb465df6bbadc66550ffac77abc62a1
Reviewed-on: https://chromium-review.googlesource.com/574909Reviewed-by: Tommi <tommi@chromium.org>
Commit-Queue: Tommi <tommi@chromium.org>
Cr-Commit-Position: refs/heads/master@{#487254}

DEPS

@@ -235,7 +235,7 @@ 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' + '@' + 'f21628fc825dc17f8426566bc8926ef2d014a603', # commit position 18968
+    Var('chromium_git') + '/external/webrtc/trunk/webrtc.git' + '@' + 'beaccf9aa08e8e5dbd06235d60150bbe0e14ce98', # commit position 19024
 
   'src/third_party/openmax_dl':
     Var('chromium_git') + '/external/webrtc/deps/third_party/openmax.git' + '@' +  Var('openmax_dl_revision'),