PreviewsDataSavings is an unused class that is unnecessary. Initially, this was intended to be used by previews to record savings for various previews and hook it into the data_reduction_proxy savings logic. This design doesn't make sense right now for the previews considered, and previews should track their own savings.
The previews/ component ideally should not depend on any previews, instead the previews should depend on previews/. Currently, previews is just the previews blacklist and some classes around that.
Comment 1 by bugdroid1@chromium.org
, Mar 8 2017