Predator could not provide any possible suspects.

From the above CL observing some changes related to 'appcache_manifest_parser_fuzzer' , hence suspecting the same
https://chromium.googlesource.com/chromium/src/+/789b24cd67dc1f85ec843e041f4bf28979fe8ee1

inferno@ -- Could you please check whether this is caused with respect to your change, if not please help us in assigning it to the right owner.

Thanks!

ClusterFuzz has detected this issue as fixed in range 559994:560052.

Detailed report: https://clusterfuzz.com/testcase?key=4814235981578240

Fuzzer: libFuzzer_appcache_manifest_parser_fuzzer
Job Type: libfuzzer_chrome_asan
Platform Id: linux

Crash Type: Timeout (exceeds 25 secs)
Crash Address: 
Crash State:
  appcache_manifest_parser_fuzzer
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan&range=546463:546478
Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan&range=559994:560052

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4814235981578240

See https://chromium.googlesource.com/chromium/src/+/master/testing/libfuzzer/reference.md for more information.

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

ClusterFuzz testcase 4814235981578240 is verified as fixed, so closing issue as verified.

If this is incorrect, please add ClusterFuzz-Wrong label and re-open the issue.