commit 4596d2f525e5e78b2d1acf94bca9efe20f226395
author Hugo Benichi <hugobenichi@google.com> Fri Jan 19 13:36:29 2018 +0900
committer Hugo Benichi <hugobenichi@google.com> Wed Jan 24 22:22:08 2018 +0000
tree fc39186e42eca57d794056ff6b0b9cca5a95837e
parent 3b65c7ad25bf5ef281394d4c5212e849afe39fcb

TcpSocketMonitor: Add stats tables per sockets and per networks

This patch defines SocketEntry and TcpStats for tracking inside
TcpSocketMonitor per-socket and per-network tcp statistics.

For the time being, the following data is tracked:
 - total packet sent and lost
 - average rtt
 - time diff between last packet sent and last ack received

Bug: 64147860
Test: tested manually, watching the result of
      $ adb shell dumpsys netd tcp_socket_info
Change-Id: If032a4884ac5dcd693ccfc4bc738167d848a9833