Currently we have 3 histograms for download location change feature.
"MobileDownload.Location.Dialog.Result",
"MobileDownload.Location.Dialog.Type",
"MobileDownload.Location.Setting.DirectoryType",
These are recorded when users interact with UI, we should have a metric to record the directory type when download completes.
To analyze the percentage of users uses SD card location, use unique users query on this new metric.
Also "MobileDownload.Location.Setting.DirectoryType" records when users interact with two different kind of UI, instead we can separate them into 2 histograms.
Comment 1 by bugdroid1@chromium.org
, Aug 6