A few months back I wrote about the poor state of Chrome/Chromium HiDPI support on Linux but fortunately with the latest unstable web browser code these issues appear to have been resolved.

For what seems like ages, Chrome/Chromium Linux users have reported HiDPI issues for those trying to use the web-browser on modern, high-density displays. Fortunately, the related bug report seems to indicate the outstanding High DPI issues have been resolved in google-chrome-unstable.

A related Google developer ended this bug report that was open for almost three years, "I just installed and tested today’s google-chrome-unstable release (version 43.0.2357.2) and all my fixes are included and seem to be working fine. I’m closing this issue. For any further issues with hi-dpi on linux, please create new issues."