[1/2] Base: add network traffic meter

This commit come from:

https://github.com/omnirom/android_frameworks_base/commit/4268d2d3eaa91598b6a820c43f78779f9da29689#diff-861aa855219bd25761dc6f44dfb97937R2106

https://github.com/omnirom/android_frameworks_base/commit/12daeeb5de44f5992bf0eaff6abf606e3be879e5

https://github.com/omnirom/android_frameworks_base/commit/017c56cdb2011cea0026b97e5c40ac9b567a072e
Revert "[1/2] Base: add network traffic meter"

This reverts commit 9839267c35cf13ba645b255d02802c3edf693c10.
Revert "Revert "[1/2] Base: add network traffic meter""

This reverts commit 054da4b571234cbf5621f62b376679e86a53abdd.