Predator and CL did not find any possible suspects.
Using Code Search for the file, "shelf_view.cc" assigning to the concern owner.
Suspecting Commit#
https://chromium.googlesource.com/chromium/src/+/84352d5d869c9c5a8092f4dc44dab7a6950a3b18

@msw -- Could you please look into the issue, kindly re-assign if this is not related to your changes.
Thank You.

ClusterFuzz has detected this issue as fixed in range 453125:453126.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=6562675422396416

Fuzzer: webDEViL_webgl
Job Type: linux_asan_chrome_chromeos
Platform Id: linux

Crash Type: CHECK failure
Crash Address: 
Crash State:
  ShelfButton::kViewClassName == view->GetClassName() in shelf_view.cc
  ash::ShelfView::GetIdealBoundsOfItemIcon
  ash::ShelfWidget::GetScreenBoundsOfItemIconForWindow
  
Sanitizer: address (ASAN)

Regressed: https://cluster-fuzz.appspot.com/revisions?job=linux_asan_chrome_chromeos&range=451685:451698
Fixed: https://cluster-fuzz.appspot.com/revisions?job=linux_asan_chrome_chromeos&range=453125:453126

Reproducer Testcase: https://cluster-fuzz.appspot.com/download/AMIfv96xAQcZV4Qyrd7zvHieKm4COdY7Ty0Y-jPrXB2fvcXQwCXJFhGNDAuwc2u8KLBvCNXniRK4JTbBX9zVWR5Be9MvbD5ijxOcuxLe0yEpSxgwwwZhWzQCAfQx5iWltWTi6IhoWHkvv2JbHF1vP5463CqVjfDXyJfHUSHy4UdH6tXmYjNxw4VOX0geoEAAIvVQAFIttrhYrPaI2JaXwc5_v_R3adTOd_xndcER6xfV5ho3jKprNsY2UOjDZuO1VAwr1nU_H950IL6EmkB9Ejm_TKXypAtofhskvSI4SR6RTjSM30cTEcA1O_pn43NbJ94Y2lwkNklinnTwviQAtPs1TOX_ugtixT4n_vfapsMo7yWQa0thiMFoJcTs43-Q4YU5fi6x5NMbkc7MqN4bj9eRHnGmlCE0kw?testcase_id=6562675422396416


Additional requirements: Requires Gestures

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 6562675422396416 is verified as fixed, so closing issue.

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