Add the network service as a data dependency of html_viewer for Android.

The corresponding desktop CL: https://codereview.chromium.org/1090753002

BUG=NONE
TEST=Building html_viewer from scratch also builds the network service.
R=sky@chromium.org

Review URL: https://codereview.chromium.org/1097503002

Cr-Commit-Position: refs/heads/master@{#325501}