Not sure. Two possible reasons are that it is always part of the list whether you have ever installed it or not (easier than having the cleaner program search to see if a common program is installed) or could be that when you uninstalled CCleaner it left a remnant list of programs.
Chrome usually installs in the Program folder (and leaves old versions when ever it updates) but will occasionally install in the folder the downloaded install program was in (usually if you install from a non-admin account). The way it installs is why I don't use it any more, it's rubbish (the installer not the browser which is okay).
If you are still thinking it is installed somewhere, just search for chrome(dot)exe. That file will be in the folder chrome is installed to.
You are a smart guy.
Searched chrome(dot)exe.
It was called ChromeInst and it was in :
OS(C:/ computer/program files/AVAST Software/ Avast/chrome
I tried to uninstall it, using Malwarebytes/File Assassin.
As luck would have it, (..it, they, them,) said I had to have administrator privilege.
But that bums me right out, because it is my computer, and I should have the privilege to put an axe thru it , if I so choose.