可参考：
http://www.kazaff.me/2014/01/26/chrome-developer-tools%E4%B9%8B%E5%86%85%E5%AD%98%E5%88%86%E6%9E%90/
http://www.kazaff.me/2014/01/18/chrome-developer-tools%E4%B9%8Btimeline%E9%9D%A2%E6%9D%BF/
http://www.kazaff.me/2014/01/15/chrome-developer-tools%E4%B9%8B%E7%BD%91%E7%BB%9C%E7%9B%91%E6%8E%A7%E4%B8%8E%E8%B0%83%E4%BC%98/
原文：http://www.cnblogs.com/simonbaker/p/4227092.html