Currently, socket tagging is implemented in the framework. The
Java code is in NetworkManagmentSocketTagger.java and the JNI is
in libandroid and loaded by the general framework JNI loader.
- Move the Java implementation to TrafficStats, which is the only
caller of NetworkManagmentSocketTagger. This simplifies the
code a bit because a number of methods can be deleted.
- Move the JNI code to a new JNI library in the APEX. The library
depends only on the NDK and statically links the NDK-only
version of libnativehelper. Its size is only 5k on ARM and 10k
on ARM64.
- Temporarily make the framework depend on this library until the
rest of the T connectivity code moves to the APEX.
Test: atest NetworkUsageStatsTest CtsNetTestCases:TrafficStatsTest
Change-Id: I050c7c515237f68b78d08987bc443f50a7949c06
d0a17ee9d5