Chrome Version:63.0.3216.0 (Official Build) c3592928ad6753206a00d98787a578cda6153570-refs/heads/master@{#502108}(64-bit)

OS: Windows(10 Touch device).

Steps to reproduce:
1. Launch chrome, go to chrome://settings, scroll down and refresh the page multiple times using finger-touch.
2. Observe.

Actual Result: Settings menu button disappears on refreshing.
Expected Result: Settings menu button should be seen upon refreshing.

This is Regression issue broken in 'M-62' and below is the per-revision bisect result:

Using the per-revision bisect providing the bisect results,
Good Build: 62.0.3173.0(Revision: 490803)
Bad Build: 62.0.3174.0(Revision: 491203)

You are probably looking for a change made after 491191 (known good), but no later than 491192 (first known bad).

CHANGE-LOG URL:

The script might not always return single CL as suspect as some perf builds might get missing due to failure.

https://chromium.googlesource.com/chromium/src/+log/594f4118d05c0d3289503a8bdf00fad04354e00f..2672be183a7c6760f0163892b7633db9880c8c65

Suspect: https://chromium.googlesource.com/chromium/src/+/2672be183a7c6760f0163892b7633db9880c8c65

@dschuyler: Could you please check whether this is caused with respect to your change, if not please help us in assigning it to the right owner.

Thank
 

Deleted: Actual Result.mp4 967 KB

	Actual Result.mp4 967 KB View Download

Deleted: Expected Result.mp4 960 KB

	Expected Result.mp4 960 KB View Download