UserAgent: Mozilla/5.0 (X11; CrOS x86_64 10323.52.0) AppleWebKit/537.36 (KHTML, like Gecko) Chrome/65.0.3325.148 Safari/537.36
Platform: 10323.52.0 (Official Build) beta-channel lulu

Steps to reproduce the problem:
1. Open a document or email where you have different amounts you want to sum, substract, divide or multiply. Ideally if you have more than 4 different numbers.
2. Open the Default Calculator app.
3. Copy the first number on the doc/email and paste it to the calculator. Then press + key.
4. Copy the second number on the doc/email and paste it to the calculator. Then press + key.
5. Copy the third number on the doc/email and paste it to the calculator. Then press + key.
6. Copy the last number on the doc/email and paste it to the calculator. Then press enter key.

What is the expected behavior?
The calculator app should be in the front always, so everytime you need to copy another number on the doc/email it won't dissapear, and you can see the last calculation and last result. 

What went wrong?
Everytime you have to copy a new number, the calculator app goes to the background, so you lost the vision of it and have to change windows everytime you have to copy a new number.

The experience of the user is really bad and slow.

I am fairly quick (i attach a video showing me doing this process) but you have to see a normal user doing it (like a 50 year old end user)

WebStore page: https://chrome.google.com/webstore/detail/calculator/joodangkbfjnajiiifokapkpmhfnpleo?utm_source=chrome-app-launcher

Did this work before? N/A 

Chrome version: 65.0.3325.148  Channel: beta
OS Version: 10323.52.0
Flash Version: 

The Google play mini player have a built-in "always in front" option on the window, that should complete apply to this situation as a perfect solution.

For bigger screens or double screens, the ability to have this option in all windows, will be fantastic and a signature feature of Chrome OS.
 

Deleted: Screenshot 2018-03-17 at 19.49.47.png 22.6 KB

	Screenshot 2018-03-17 at 19.49.47.png 22.6 KB View Download