Create Web App
To install a web app in chrome, navigate your Chrome browser to the Web Store, find an app you like, and add the app. In this article, we will demonstrate with Google Docs.After you've installed your app, find it in the app window, right-click, and select "Create Shortcuts..."
Chrome will then ask where you want to create the shortcut. Make sure the "Applications menu" is selected and the "Desktop" option is deselected.
After you create the shortcut, Chrome will do the rest, including adding it to Slingshot.
A chrome web app looks identical to a fogger app. As with fogger, you may also decide to keep your newly created application in Plank.
Modify Icon
The only thing that is a bit disappointing in the process is the low quality icon. However, if you want to modify the icon, it's easy. You can edit the icon location by opening shortcut file (~/.local/share/applications) with Scratch.Edit the icon path with whichever icon you wish.