Roll WebRTC 14139:14157 (15 commits)

Changes: https://chromium.googlesource.com/external/webrtc/trunk/webrtc.git/+log/3d67882..c46742b

$ git log 3d67882..c46742b --date=short --no-merges --format=%ad %ae %s
2016-09-09 kwiberg@webrtc.org rtc::Optional: Tell sanitizers that unset values aren't OK to access
2016-09-09 philipel@webrtc.org Added ClearTo(seq_num) to RtpFrameReferenceFinder.
2016-09-09 kthelgason@webrtc.org Reland of move all reference to carbon api (patchset #1 id:1 of https://codereview.webrtc.org/2317343003/ )
2016-09-09 kwiberg@webrtc.org VadCore: Allow signed multiplication overflow that we don't know how to fix
2016-09-09 kjellander@webrtc.org MB: Disable more parts of the GYP build.
2016-09-09 kjellander@webrtc.org Remove references to .isolate files that are no longer needed.
2016-09-09 hbos@webrtc.org Renamed RTCStatsReport to RTCLegacyStatsReport in objc files.
2016-09-09 sakal@webrtc.org Add sakal as an OWNER to some Android files.
2016-09-09 asapersson@webrtc.org Update AvgCounter to have the ability to include last period metric for subsequent intervals without samples (e.g. for non-periodic updated stats).
2016-09-09 sakal@webrtc.org Make UMA stats creation available in the Java interface.
2016-09-08 magjed@webrtc.org Add magjed@ as owner of webrtc/common_video
2016-09-08 kjellander@webrtc.org Revert of Add a DEPS gclient hook to prune corrupt mockito remote. (patchset #1 id:1 of https://codereview.webrtc.org/2326523002/ )
2016-09-08 kjellander@webrtc.org Revert of Separating video settings in VideoQualityTest. (patchset #2 id:20001 of https://codereview.webrtc.org/2312613003/ )
2016-09-08 peah@webrtc.org This CL refactors the buffering of the incoming near-end signal inside the AEC. This solves the following issues: -Even though the buffering was previously done using ringbuffers, those   were inefficiently used which caused a lot of hidden memcopys. -The ringbuffers wasted a lot of space in the AEC state as they were too   long. -The lowest and two upper bands were decoupled in the buffering, which   required extra code to handle. -On top of the ringbuffers there was a second linear buffer that was   stored in the state which caused even more data to be stored on the   state. -The incoming nearend frames were passed to the functions in the form   of buffers on the state, which made the code harder to read as it was   not immediately clear where the nearend signal was used, and when it   was modified.
2016-09-08 henrikg@webrtc.org Change owner of webrtc/test/channel_transport to solenberg@.

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/2326953004
Cr-Commit-Position: refs/heads/master@{#417564}

DEPS

@@ -219,7 +219,7 @@ 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' + '@' + '3d6788200a8007ceade45a5d265c7ac0f79bc81a', # commit position 14139
+    Var('chromium_git') + '/external/webrtc/trunk/webrtc.git' + '@' + 'c46742b667a31f0d892f46fd32822202476133ef', # commit position 14157
 
   'src/third_party/openmax_dl':
     Var('chromium_git') + '/external/webrtc/deps/third_party/openmax.git' + '@' +  Var('openmax_dl_revision'),