Merge changes from topic 'aosp-merge-24-12'

* changes:
  Omit AsynchronousCloseMonitor.cpp in host/macosx and ndk
  Move AsynchronousCloseMonitor here from libcore
  Add a JniConstant for InetSocketAddressHolder.
  Remove JNI constants related to RealToString.
  Track renaming of FileDescriptor field.
  Add a JNI constant for InetAddressHolder.
  Track usage of OpenJdk's FileDescriptor class.
  Track switch to OpenJdk's java.text class.