Roll src/third_party/webrtc 60bd1aea3d6d..01294f0e2987 (5 commits)

https://webrtc.googlesource.com/src.git/+log/60bd1aea3d6d..01294f0e2987

git log 60bd1aea3d6d..01294f0e2987 --date=short --no-merges --format='%ad %ae %s'
2019-11-14 philipel@webrtc.org Don't configure video codec switching if no video stream has been created.
2019-11-14 noahric@chromium.org Reduce verbosity of logging around playout underrun count on iOS.
2019-11-13 mbonadei@webrtc.org Revert "Reland "Define WEBRTC_ENABLE_SYMBOL_EXPORT if is_component_build=true.""
2019-11-13 mbonadei@webrtc.org Reland "Define WEBRTC_ENABLE_SYMBOL_EXPORT if is_component_build=true."
2019-11-13 danilchap@webrtc.org Stop using DEPRECATED_SingleThreadedTaskQueueForTesting in call tests

Created with:
  gclient setdep -r src/third_party/webrtc@01294f0e2987

If this roll has caused a breakage, revert this CL and stop the roller
using the controls here:
https://autoroll.skia.org/r/webrtc-chromium-autoroll
Please CC webrtc-chromium-sheriffs-robots@google.com on the revert to ensure that a human
is aware of the problem.

To report a problem with the AutoRoller itself, please file a bug:
https://bugs.chromium.org/p/skia/issues/entry?template=Autoroller+Bug

Documentation for the AutoRoller is here:
https://skia.googlesource.com/buildbot/+/master/autoroll/README.md

TBR=webrtc-chromium-sheriffs-robots@google.com

No-Try: True
Bug: chromium:none,chromium:None
Change-Id: Ib951232ed85757f7df6c6872674056a728204106
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/1916629
Commit-Queue: Mirko Bonadei <mbonadei@chromium.org>
Commit-Queue: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Reviewed-by: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#715313}

DEPS

@@ -1502,7 +1502,7 @@ deps = {
     Var('chromium_git') + '/external/khronosgroup/webgl.git' + '@' + 'dd55f3ca8f2ea716ca917a4aaf36f0729fe902b1',
 
   'src/third_party/webrtc':
-    Var('webrtc_git') + '/src.git' + '@' + '60bd1aea3d6dc650264ddaeaa0b1f5bce19bb05a',
+    Var('webrtc_git') + '/src.git' + '@' + '01294f0e298723dc9128fb6d45060f816f3034ac',
 
   # Wuffs' canonical repository is at github.com/google/wuffs, but we use
   # Skia's mirror of Wuffs, the same as in upstream Skia's DEPS file.