Bug 293829

Considering the following HTML: ``` <div style="-webkit-user-select:none">start selection here</div> <div>should not select text here</div> ``` data:text/html,<div%20style="-webkit-user-select:none">start%20selection%20here</div><div>should%20not%20select%20text%20here</div> I should not be allowed to select the text on the second line when I start dragging from the first line and continue to the second line. Related spec text: > Attempting to start a selection in an element where user-select is none, such as by clicking in it or starting a drag in it, must not cause a pre-existing selection to become unselected or to be affected in any way.