Merge "Add more test coverage for UrlRequest and ConnectionMigrationOptions." am: a23a74a232

Original change: https://android-review.googlesource.com/c/platform/packages/modules/Connectivity/+/2472109

Change-Id: If09f592bbd5a38c4aa25b252954b9a66fdbd85bf
Signed-off-by: Automerger Merge Worker <android-build-automerger-merge-worker@system.gserviceaccount.com>