As well intentioned as these were, uint16_t and C++11's char16_t are
_not_ actually compatible. They are not implicitly convertible, and
they mangle differently, so they are not even ABI compatible. In our
now wonderous world of C++11, no one should be using these, so just
kill them.
Bug: 18300613
Change-Id: I06d92d7f1d937dd94a620874323d4c50eb6a31bd
libc++ also defines these types for pre-C++11, and the two definitions
need to match to avoid redefinition errors.
Bug: 18300613
Change-Id: I1e9198d39f7c470f37bc6edba2dca2d499f54c9b
Split out all the UTF-8/16/32 handling code from String8/16 to its own
file to allow better reuse of code.
Change-Id: If9ce63920edc75472c38da4adce0d13cda9ad2f7