Chrome bookmarks are kept in the following folder
References:
http://www.howtogeek.com/111784/how-to-recover-accidentally-deleted-bookmarks-in-chrome-firefox/
C:\Users\<username>\AppData\Local\Google\Chrome\User Data\Default\Look for the file called Bookmarks or Chrome also keeps a copy of bookmarks that were present as of the last time Chrome was closed in a file called Bookmarks.bak
References:
http://www.howtogeek.com/111784/how-to-recover-accidentally-deleted-bookmarks-in-chrome-firefox/
