NOTE: To change the user-agent header, you need to run Chrome/Chromium with the following parameters:

chrome.exe --user-agent="Mozilla/5.0 (Linux; U; Android 2.1-update1; en-us;) AppleWebKit/530.17 (KHTML, like Gecko) Version/4.0 Mobile Safari/530.17"

Height:		Must be between 96 and 2048. Would be selectable.
Width:		Must be between 96 and 2048. Would be selectable.
User-Agent:		Does not affect anything yet (see the note above). Would be selectable.
URL: