Merge "Adding API stubs for application network routing" am: 20a9e59e25 am: e92d8a7865 am: ab220aa956

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1478963

Change-Id: I22f8b7b15a0bc7643474f5119dd34cdddf5a8376