Predator could not provide any possible suspects.

From the below CL observing some changes related to 'CSS parser' hence suspecting the same
https://chromium.googlesource.com/chromium/src/+log/920bdc038a677bd4d6e8f46f03c4829f484dcd7f..2f975f8b813b9995b8ee5a798401bc5398eea4a2?pretty=fuller&n=10000

Suspect CL: https://chromium.googlesource.com/chromium/src/+/f6929b4a84c7b1957fd7d2f1615a4af740576f55

metzman@ -- 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 545328:545343.

Detailed report: https://clusterfuzz.com/testcase?key=4979501080248320

Fuzzer: libFuzzer_css_parser_proto_fuzzer
Job Type: libfuzzer_chrome_asan_debug
Platform Id: linux

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

Regressed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan_debug&range=512066:512086
Fixed: https://clusterfuzz.com/revisions?job=libfuzzer_chrome_asan_debug&range=545328:545343

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=4979501080248320

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 4979501080248320 is verified as fixed, so closing issue as verified.

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

 Issue 825572  has been merged into this issue.