well, i know that both those gentlemen know a hell of alot about IE and tracing various crashes that have occured with it using WinDBG. i am sure they know about the inner workings of Chrome as well
not sure about any books, but some of the most popular browsers are open source, and i'm sure they'll be documented to some level. you should check out some of the open source projects developer wikis-and-what-not. they'll almost certainly have public source-control too, so you could follow their changes and study into how they implemented a security patch.