Chrome’s omnibar can be used for more than just searching and typing URLs.
To enable inbox searching, click Chrome menu button and select parameters.
Something like “gs” is ideal.
you’re free to use a similar process to enable email composition from the address bar.
Check out the article at the link below for more details and tips.
You might also want to look at some of the othercustom searches we have looked at.
How to Search Gmail & Compose New Emails Straight from Chrome’s Address Bar| WonderHowTo