Let me introduce a good reference about rendering in Chrome.

If you go to [the website of 'The Chromium Projects' > Chromium > Sections > For Developers > Subpage Listing > Design Documents (You have to click the link.) > Start Here: Background Reading], you can find a part mentioning 'Life of a Pixel'. You can see the video and download the slides.

The information is highly reliable as it is from the official website.