Location of Google Chrome user data files:
Windows Vista, Windows 7 (Chrome Dev, Beta, Prod Channels):
C:\Users\%USERNAME%\AppData\Local\Google\Chrome\User Data\Default\databases\chrome-extension_edacconmaakjimmfgnblocblbcdcpbko_0
Windows Vista, Windows 7 (Chrome Canary Build):
C:\Users\%USERNAME%\AppData\Local\Google\Chrome SxS\User Data\Default\databases\chrome-extension_edacconmaakjimmfgnblocblbcdcpbko_0
OSX:
/Users/<username>/Library/Application Support/Google/Chrome/Default/databases/chrome-extension_edacconmaakjimmfgnblocblbcdcpbko_0
Ubuntu:
/home/<username>/.config/google-chrome/Default/databases/chrome-extension_edacconmaakjimmfgnblocblbcdcpbko_0