Chromium changes a lot. One of my teams tried integrating it directly and couldn't keep up with the API change. We went with a 3rd party library that wraps it to shield us from it.
JxBrowser. Went from a native c implementation and wrapper to java based. Application size went up (by a lot) but it's far easier to get things done when you don't have to find someone who knows objective C in a java shop.
