Merge "Move NetworkTracePoller to a new file" am: 3e647f3c72

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/2461913

Change-Id: Id4d1f9ac72565dccd3b91b3af3bf9e466ddf70ee
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>