Chrome Version: (copy from chrome://version)
OS: (e.g. Win7, OSX 10.9.5, etc...)

What steps will reproduce the problem?
(1) Connect ChromeOS laptop with additional display. 
(2) Switch virtual keyboard to floating mode.
(3) Try to drag floating keyboard to other display. But failed.

What is the expected result?
Can drag the floating keyboard to other display.

What happens instead?
Can't drag the keyboard to the other display.

We can work around to fix it, always show floating keyboard in the screen which has the current input box.