I understand that; what I haven't found is the actual difference between the two. Are there any functional differences between Chrome and Chromium (assume Wind

I understand that; what I haven't found is the actual difference between the two. Are there any functional differences between Chrome and Chromium (assume Windows version, since I'm not referring to things missing in an incomplete port), or is it only a branding thing so that the projects that fork and extend it don't use something with Google's brand?