This is a continuation of b/26545374, since now we can also set the metered bit with NetworkScorer. The tracking of metered state changes will be implemented in a seperate CL. Bug: 31015360 Bug: 26545374 Test: N/A (cherry picked from commited7fcb4d26) (cherry picked from commitebace40092) Change-Id: I01ebb270c5bf7f2383e8923cce72545ca1bee118