Previously, only the text update event in composing mode
is used to update the IME rotation order. This may look strange
to a user especially when the character is input without
composition.
With this CL, to cover above cased, sending a key event is also
used as a trigger to update update the rotation order.
Note that the cost of calling IMM#notifyUserAction multiple times
is now cheap enough because of the optimization made in
I19ad8542659bc092b92ee13e.
BUG: 7043015
Change-Id: I03fa436df0a5e348b3f93170aab3a8ac5a7e1677
39dd1510ea