title: How get current URL from browser
body: <p>I am writing a system app. I need to know what URLs are currently opened in browser.
  My application contains <code>Service</code> which determines what app is active in the front.
  Also my application contains <code>IME</code> (SoftKeyboard) which has access to editable views of the activity of the browser (if my IME is open and active).
  Is it possible to get current URL opened in browser(native Browser, Opera, Chrome etc.)? Can I get this URL from <code>Service</code> or from <code>IME</code>?</p>