UserAgent: Mozilla/5.0 (X11; CrOS x86_64 9901.54.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/62.0.3202.74 Safari/537.36
Platform: 9901.54.0 (Official Build) beta-channel cave

Steps to reproduce the problem:
1. Open notifications list when they are available (at the bottom right of shelf)
2. Press search button
3. Start typing search question (e.g. the name of app to open)

What is the expected behavior?
You can type in search box that appears on screen

What went wrong?
The search box appears but it is not focused and the notification list is still seen on the screen, the text typed does not appear in the search field

Did this work before? N/A 

Chrome version: 62.0.3202.74  Channel: n/a
OS Version: 9901.54.0
Flash Version: 

I personally find it very frustrating since I use keyboard a lot and especially the "search" button on chromebook - and I tend to look at notifications then click search to check for something while looking through notifications and immediately start typing.

I only realize that something is wrong when I already typed what I wanted.