I researched this recently - Chromium definitely has a DesignMode. You can even turn it on using the Console in Developer Tools (I tested it). However, I have no idea what its behaviour is like compared to the MS WebBrowser control's DesignMode, which we use for our HTML editor for mail-merge documents in our application, which works quite well.
I think the big issue for those of us distributing software via downloads is the installed size needed for a Chromium-based browser. The commercial ActiveX version that is available, WebKitX, says its redistributable is 75MB. (And our whole app's download is currently only about 30MB!) Whereas using the MS WebBrowser control needs no redistributable, because it is always included in Windows.
Yes I think we probably do, Armeen, or at least on quite slow Internet. And we have a lot of customers who choose not to have Internet access at all on their church computers (presumably because they are worried about malware) so they have to download elsewhere, copy to a USB, and bring that to the church to install. We want installs for our customers (many of home are not at all expert with computers) to be fast, easy, and painless, and the bigger the install, the less that is true.
And more to the point, our solution with the MS WebBrowser control for mail-merge editing and merging is working well. There would have to be a huge "win" in switching to a Chromium-based browser control for us to be willing to more than triple the size of our installers for that one feature.
Armeen, are we talking about the same thing? I'm taking about including the WebBrowser as an ActiveX control on a window, as in Roland Smith's good free example. That isn't part of the product, it's part of Windows.