Merge "[MS63.1] Remove TrafficStats.TAG_SYSTEM_DOWNLOAD dependency" am: 3a57e69dfe am: 3deb5c703a am: 4a07134b1f am: fc922e00ea

Original change: https://android-review.googlesource.com/c/platform/frameworks/base/+/1952106

Change-Id: I280b54ef8b105ed5a0fc6107e47a78d60b915514
tree: 7d6dfd42ba395485d1f3aec44060ab465df0d0cb
  1. core/
  2. framework/
  3. framework-t/
  4. service-t/
  5. services/
  6. tests/