Changing selection by mouse click uses event target node to calculate position. This processing is performed after event dispatch. When event handler removes event target node, selection isn't changed.

This patch changes this behavior to pass recomputing event target when it is removed for changing selection.

BUG=141325
R=ojan@chromium.org

Review URL: https://codereview.chromium.org/16925006

git-svn-id: svn://svn.chromium.org/blink/trunk@154373 bbb929c8-8fbe-4397-9dbb-9b2b20218538