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

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

Change-Id: I1250e9246ca66cc660605510d22187c5886cb625
tree: a0a435fa3756b32132f517be6a39b9494d1fc373
  1. core/
  2. framework/
  3. framework-t/
  4. service-t/
  5. services/
  6. tests/