Verify that the native handle was created

The inputs to native_handle_create can cause an overflowed allocation,
so check the return value of native_handle_create before accessing
the memory it returns.

Bug:19334482
Change-Id: I1f489382776c2a1390793a79dc27ea17baa9b2a2
(cherry picked from commit eaac99a7172da52a76ba48c26413778a74951b1a)
