Roll src/third_party/webrtc e55f0c338495..2507f8cdc979 (5 commits)

https://webrtc.googlesource.com/src.git/+log/e55f0c338495..2507f8cdc979

git log e55f0c338495..2507f8cdc979 --date=short --first-parent --format='%ad %ae %s'
2020-03-19 peah@webrtc.org APM: Replace all remaining usage of AudioFrame outside interfaces
2020-03-19 chromium-webrtc-autoroll@webrtc-ci.iam.gserviceaccount.com Roll chromium_revision d69529f5..4b28405b (751530:751644)
2020-03-19 peah@webrtc.org Correct the storing of the processed output in aecdumps
2020-03-19 magjed@webrtc.org Android: Synchronize EGL14.eglDestroyContext calls
2020-03-19 phoglund@webrtc.org Write pb perf output files on iOS.

Created with:
  gclient setdep -r src/third_party/webrtc@2507f8cdc979

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

Bug: chromium:1029452
Tbr: webrtc-chromium-sheriffs-robots@google.com
Change-Id: I0e1c4c986c93f563e0ac069619fe1d6ebe4402bf
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2109887Reviewed-by: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Commit-Queue: chromium-autoroll <chromium-autoroll@skia-public.iam.gserviceaccount.com>
Cr-Commit-Position: refs/heads/master@{#751698}

DEPS

@@ -1448,7 +1448,7 @@ deps = {
     Var('chromium_git') + '/external/github.com/gpuweb/cts.git' + '@' + '84ee597cdeae08bb26e578fc66a35bcf35f633f4',
 
   'src/third_party/webrtc':
-    Var('webrtc_git') + '/src.git' + '@' + 'e55f0c3384954b59ddf158c3daad4f3595c067bc',
+    Var('webrtc_git') + '/src.git' + '@' + '2507f8cdc979837692a96f0728c8cb9227c1b966',
 
   'src/third_party/libgifcodec':
      Var('skia_git') + '/libgifcodec' + '@'+  Var('libgifcodec_revision'),