tree e7c17cd39a1b5c542727166d2adbf578c988fcb7
parent 212d6930cc8f2a64d37d68141b7c78ee39a053a3
author lesl <lesl@google.com> 1609406788 +0800
committer lesl <lesl@google.com> 1618820007 +0800

wifi data usage: support to get carrier merged wifi network.

Carrier merged wifi network is a specific cerrier wifi network
which provides the same user experience as mobile.

To support data usage accounting for carrier merged wifi,
the change provide several APIs in NetworkTemplate:

  1. extend buildTemplateWifi so it could be used for matching
     wifi networks with subscriber Id (IMSI).
  2. add buildTemplateCarrier to let
     NetworkPolicyManagerService creates a single policy for
     a given carrier regardless of network type.

Bug: 176396812
Test: atest -c NetworkTemplateTest
Test: atest -c NetworkStatsServiceTest
Test: Manual Test with test code on mobile and wifi network.
      1. buildTemplateCarrier includes the carrier wifi and
         mobile usage
      2. buildTemplateWifi can get carrier wifi usage and support the
         filter via subscriberId

Change-Id: I667b4adf3eec0bdd3a7385109dd8c1fae8e7be32