meade@: Could you please take a look into this if its related to your change.
Assigned referring to the  issue 681356 .Feel free to dupe it if its the same.
Currently its impacting to the head.

ClusterFuzz has detected this issue as fixed in range 447218:447232.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=5793132894748672

Fuzzer: lcamtuf_cross_fuzz
Job Type: linux_tsan_chrome_mp
Platform Id: linux

Crash Type: CHECK failure
Crash Address: 
Crash State:
  i < size() in Vector.h
  blink::TransformBuilder::createTransformOperations
  blink::StyleBuilderConverter::convertTransformOperations
  
Sanitizer: thread (TSAN)

Regressed: https://cluster-fuzz.appspot.com/revisions?job=linux_tsan_chrome_mp&range=445525:445713
Fixed: https://cluster-fuzz.appspot.com/revisions?job=linux_tsan_chrome_mp&range=447218:447232

Reproducer Testcase: https://cluster-fuzz.appspot.com/download/AMIfv96d4w9P8yrifbqmkl4JcxX1Nbz59Rp84aY56-daUchxoE_K7GTcKZW0outxVXOz8jitJl29EwphhpbRceQEvW2_t4PNbFFaOq7SWd5M2Kwk3CFK-DcZlJDDwdMp2eNtRjLw4tKBg3ktPl6uwbtMBgJ5DnnqEPlJQheyP1w63i9jEgvO68gHHHdkLjwFgC00qMydMPTuNSf16O8ddK3eiYYyfsZ2DTBSssTTLCBgQV77VBjl8tXHM7HRLVw20LGz657YBSdc5jNLd8XCP2tizkjPX8H9a3M2cA4zjlIBY3eAWjzwnKAeLSVM-14PCPRDZDNrya7sjq4MujxJC2TrQTeG-6TUZKK_bKLq5zT41au2SrBnjIY?testcase_id=5793132894748672


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.

ClusterFuzz testcase 5793132894748672 is verified as fixed, so closing issue.

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