DO NOT MERGE [DPM] Minor code fixes in NetworkLoggingHandler

Added a comment and renamed field to follow mConvention.

Test: will be CTS tested once APIs unhidden
Bug: 29748723

(cherry picked from commit aabe96db87838501d3abeb96c25a4b1c50b9c12c)

Change-Id: I7ef118723d13ce1d313c3c56299c2dca2411eee6
2 files changed