make chrome build without any printing support

User complain that chrome doesn't build using their customized args.gn. See https://bugs.chromium.org/p/chromium/issues/detail?id=603559#c57.

Their args.gn set enable_basic_printing, enable_print_preview and enable_service_discovery to false. This patch makes sure this flag setting can build successfully.

BUG=603559

Review-Url: https://codereview.chromium.org/2884123003
Cr-Commit-Position: refs/heads/master@{#473057}
3 files changed