weiliangc @ could you please look into this.please feel free to re-assigned back if needed. thanks in advance 

ClusterFuzz has detected this issue as fixed in range 415934:416233.

Detailed report: https://cluster-fuzz.appspot.com/testcase?key=5592810944462848

Fuzzer: inferno_twister
Job Type: linux_ubsan_chrome
Platform Id: linux

Crash Type: Integer-overflow
Crash Address: 
Crash State:
  gfx::Rect::right
  cc::draw_property_utils::ComputeVisibleRectsInternal
  cc::draw_property_utils::ComputeVisibleRects
  
Regressed: https://cluster-fuzz.appspot.com/revisions?job=linux_ubsan_chrome&range=379031:379043
Fixed: https://cluster-fuzz.appspot.com/revisions?job=linux_ubsan_chrome&range=415934:416233

Minimized Testcase (0.38 Kb): https://cluster-fuzz.appspot.com/download/AMIfv95sldfngnmk71WI0bOryPcIELq4rmshsvcq90Kk5rcUlG5r2_N9NTTVy2d5TvvTjsTeMPSnqZMTX6FSF5uvnNPaS_7vGOS2AvNpXgcRMKgqYbHDP95R5z53ba83CjNPDwb9eCd-JY4UsFiFtqzwS6H03dsnQg?testcase_id=5592810944462848

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 is verified as fixed, closing issue.

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