I just learned that there is a handy switch one can pass while launching Chrome to bypass the plugin architecture:
Previously I had resorted to moving
libflashplayer.so or removing read access from it, but this is a much more controlled method.
The are a ton of other Chrome switches that I only found by browsing the source – good thing it's available. Among them is
allow-file-access-from-files, which would have come in handy yesterday.