[lazerscience]

Because the article mentions that Chromium doesnt have HighDPI support right now: You can actually compile it with the -Denable_hidpi=1 flag which at least displays most web sites in the right way though the menu/navigation is broken (which is probably the main reason it isnt enabled by default).

[enobrev]

There's also a setting in chrome://flags (ctrl+f search for dpi: "Overrides the device scale factor on the device"), although the dropdowns no longer work and the tabs look ridiculous when set to anything above 1.