GitLab

Only show download later dialog when on metered network.

Also refactor some code to use new network API.

Bug: 1078454
Change-Id: I7217592b3dc79c3b2afb2e1c4a492d6e4a965d64
Reviewed-on: https://chromium-review.googlesource.com/c/chromium/src/+/2261106
Commit-Queue: Xing Liu <xingliu@chromium.org>
Reviewed-by: David Trainor <dtrainor@chromium.org>
Cr-Commit-Position: refs/heads/master@{#782244}