I came across the same problem, which is described in that question. The most upvoted solution worked fine for me and I also applied the same patch to my shortcut as indicated by this answer. Works awesome, too.
This allows me to open the Chrome Browser first and then open my xml file inside that browser instance with Drag&Drop. The xml stylesheet is applied as desired.
However, if I want to open my xml file directly by double-clicking on it, I want that a new Chrome Browser Instance is started (Chrome is my default browser), which displays the xml as desired. This does not happen, because the option --allow-file-access-from-files is not applied. It is only applied, if I start Chrome via my desktop shortcut.
How can I make the --allow-file-access-from-files option to be applied by default?