Chrome Version       : 62.0.3178.0
OS Version: Linux

What steps will reproduce the problem?
0. Enable wheel latching and async wheel events (I suspect these are related)
1. Scroll with wheel on page/subscroller

What is the expected result?
Page should scroll

What happens instead of that?
Nothing happens.

This happens quite occasionally so it's difficult to reproduce. When it does happen, wheels seem to be ignored. I can still scroll using the scrollbars and drag-and-drop autoscroll but that doesn't fix wheels - we're somehow getting into a bad state. 

Wheel scrolling still works in other tabs.

I've attached a trace I took once I got into this state. The affected renderer is pid 9691 (Code Search - synced_property). For e.g. see the InputHandlerManager::HandleInputEvent call in the compositor thread @ 1,282.914ms. We're receiving the GSB and GSU in the input handler proxy but there isn't much information after that. It looks like those get ACKd to the browser with "No Consumer Exists"