[tools/android] Replace FlagReplacer with flag_changer equivalent
flag_changer.CustomCommandLineFlags is now a drop-in replacement for
device_setup.FlagReplacer. This also helps keeping the code to deal
with command line files in one place, which can be tweaked as needed
to work well on future Android and Chrome versions.
BUG=698205
Review-Url: https://codereview.chromium.org/2733233002
Cr-Commit-Position: refs/heads/master@{#455433}
5 files changed