Findit has detected a flake at test DownloadShelfControllerTest.HideAndUnhide.

Culprit (70.7% confidence): https://chromium-review.googlesource.com/q/I45f34d54eabcbd539c17d3d87ba8c029489a0f28
Regression range: https://crrev.com/614415c6398168b80f74e8c454fa69bcc91e01fd..dbfd4510a8b81c606ba6897dd28561677e4d92d5?pretty=fuller

Analysis: https://findit-for-me.appspot.com/waterfall/flake?key=ag9zfmZpbmRpdC1mb3ItbWVypQELEhdNYXN0ZXJGbGFrZUFuYWx5c2lzUm9vdCJvY2hyb21pdW0ubWVtb3J5L01hYyBBU2FuIDY0IFRlc3RzICgxKS8zOTA1MS91bml0X3Rlc3RzL1JHOTNibXh2WVdSVGFHVnNaa052Ym5SeWIyeHNaWEpVWlhOMExraHBaR1ZCYm1SVmJtaHBaR1U9DAsSE01hc3RlckZsYWtlQW5hbHlzaXMYAQw

If this result was incorrect, apply the label Findit-Incorrect-Result, mark the bug as Untriaged and the component Tools>Test>Findit>Flakiness.