Merge "Add unique_fd header to IBinder.h" am: 832f440977 am: cbd08a8b95 am: 3896d0f075

Original change: https://android-review.googlesource.com/c/platform/frameworks/native/+/1684595

Change-Id: Ibd04f6ad531f5837ec5b4825ee594fdcd6f6cba1