Through code search on file gl_renderer.cc, suspected CL is 
https://chromium.googlesource.com/chromium/src/+/cc9c70f3fd05091ebb4966ee2f70efed0532fd3e%5E%21/cc/output/gl_renderer.cc
reed@, could you please take a look and help us to find correct owner if it is not related your changes.
Thank you.

My change was just an enum rename. I don't think it is responsible for this assert.

ClusterFuzz has detected this issue as fixed in range 467597:467606.

Detailed report: https://clusterfuzz.com/testcase?key=5170790791380992

Fuzzer: inferno_twister
Job Type: linux_debug_content_shell_drt
Platform Id: linux

Crash Type: CHECK failure
Crash Address: 
Crash State:
  CanApplyBlendModeUsingBlendFunc(blend_mode) in gl_renderer.cc
  cc::GLRenderer::ApplyBlendModeUsingBlendFunc
  cc::GLRenderer::UpdateRPDQBlendMode
  
Sanitizer: address (ASAN)

Regressed: https://clusterfuzz.com/revisions?job=linux_debug_content_shell_drt&range=306694:306733
Fixed: https://clusterfuzz.com/revisions?job=linux_debug_content_shell_drt&range=467597:467606

Reproducer Testcase: https://clusterfuzz.com/download?testcase_id=5170790791380992


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 5170790791380992 is verified as fixed, so closing issue.

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