How can I change the user agent string sent by Chrome on my Nexus 7?
I didn't find any way to do this except by connecting your phone to your computer and using remote web debugging feature to change user agent string.


Use this documentation to enable and start using Remote Debugging: https://developers.google.com/chrome/mobile/docs/debugging
Open any web page in your Chrome for Android
Navigate to localhost:9222 in Chrome browser on your computer and choose tab from your list of tabs opened in your Chrome for Android. You will see developer tools screen.
Go to developer tools settings on your computer by clicking on settings icon in bottom left corner of developer tools and change user agent string there
Reload web-page in your Android phone


Of course, user agent will fall back to default after you disconect your phone from computer.