After you installed Google Chrome or downloaded latest version of chromium, you will notice a
user data directory for chrome.
Most of this files, contain information in the sqlite3-database format. Using the free sqlite database browser, you can easily access/modify/delete data in that files.
I'll give you know a short information about what some of these files contain and where you should start, if you want to edit them by hand.
Cookies: Contains every information available about cookies. If you really need to get in touch with them, check the file on your own.
Web Data-> keywords: All information about the search engines, auto suggest features and the categories for the search engines are configured here.
History->downloads: What files have been downloaded and when started the download.
History->urls: How often did you visited a page (vist_count), how often did you typed the uri on your own (typed_count), what was it's lastest title, is the url hidden?, when did you visited the page the last time.
History-visits: [em]Each [/em]visit for a page (url). Contains for example: Time (visit_time) and previous page (from_visit).
Some of the files are not encoded with sqlite3-format. An other format is the JSONoation, so we'll continue with the json-user-data-files of Chrome in the next article.