suspected cl :https://chromium.googlesource.com/chromium/src/+/1f4996786dd7ab2e5d7f51c72f9309ee50aeb176%5E%21/media/audio/audio_manager.cc

alokp@ could you please look into this if it's your change. thanks in advance

I doubt that a change in AudioManager would trigger this CHECK.

It is most likely this change:
https://codereview.chromium.org/1971533005/

emircan: PTAL

The following revision refers to this bug:
  https://chromium.googlesource.com/chromium/src.git/+/fc3c6cf87f1d61d9bad732183463723841d1be1e

commit fc3c6cf87f1d61d9bad732183463723841d1be1e
Author: emircan <emircan@chromium.org>
Date: Mon May 23 19:00:34 2016

Handle ReadyStateEnded in MediaRecorderHandler

This CL addresses the fuzz discovered issue below. We receive two
tracks that are ReadyStateEnded and currently, it isn't handled properly.

BUG= 612958 

Review-Url: https://codereview.chromium.org/2004723002
Cr-Commit-Position: refs/heads/master@{#395379}

[modify] https://crrev.com/fc3c6cf87f1d61d9bad732183463723841d1be1e/content/renderer/media/media_recorder_handler.cc

ClusterFuzz has detected this issue as fixed in range 395342:395419.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=4982792483504128

Fuzzer: inferno_twister
Job Type: linux_debug_content_shell_drt
Platform Id: linux

Crash Type: CHECK failure
Crash Address: 
Crash State:
  CHECK failed: has_video_ || has_audio_ in webm_muxer.cc
  media::WebmMuxer::WebmMuxer
  content::MediaRecorderHandler::start
  
Fixed: https://cluster-fuzz.appspot.com/revisions?job=linux_debug_content_shell_drt&range=395342:395419

Minimized Testcase (0.51 Kb): https://cluster-fuzz.appspot.com/download/AMIfv94Is9hMiEoy28Cpy9fnNh7eQ820CpNhovCX55_ofD1khMY-S6UKlCogU4Ja5SSqcQd7dS8hGlba3dNDcujczEWWGQrXJ03o9XeDgyYmtKybtZGbw2-fHPQ6kLcfF0T4XFGFZNweG5BOwFGR1EjoSOKzwjLAGg

See https://dev.chromium.org/Home/chromium-security/bugs/reproducing-clusterfuzz-bugs for more information.

If you suspect that the result above is incorrect, try re-doing that job on the test case report page.

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