There are two major changes in this CL:
1. Now IMMS resets its internal state whenever the system locale list
is changed, rather than just checking the primary system locale.
2. For software keyboard subtypes,
InputMethodUtils#getImplicitlyApplicableSubtypesLocked() now takes
the entire system locale list into account when determining what
subtypes should be enabled by default when the user does not
explicitly enable one or more subtypes.
Bug: 27129703
Change-Id: Iaf179d60c12b9a98b4f097e2449471c4184e049b
e985c240e3