[WebDriver] getPageSource - Does it need to be a remote end call?

Hi All,

Do we want to keep getPageSource a server side call or are we ok with
moving this into the client. The JS required to create it is rather
trivial[1]. This could easily be moved into the local end with little
disruption to people's tests.

David

[1] driver.execute_script('return document.documentElement.outerHTML')