I'll admit I don't fully understand the Chromium <=> Chrome relationship. (I believe that Chrome is Google's browser built on the open-source Chromium code.) But isn't this an announcement made on the Chromium blog? It would appear to me that this is going to be in the Chromium source... not just Chrome. Am I missing something?
Not sure if the Chromium binaries have this restriction turned on but it doesn't matter as someone will compile it without it (probably the official Linux channels, for instance).
There's a Chromium Web Store? I'm not sure I follow :)