How to tell Google Chrome to use my Keychain Background: 

Story: A colleague of mine told me about 1Password and it seems good to me. I am always trying to use tools which Mac OS X itself gives me, so I've given the Keychain a try. It seems satisfying, but I don't know how to tell Google Chrome to use my specific keychain. I need it to separate saved stuff for work and for private (syncing private to work, but separated from work data).

Stuff:


Google Chrome 21.0.1180.57 (Fully updated)
Mac OS X Lion (Fully updated)
OS X Mountain Lion (Fully updated)


Question: 
How do I tell to Chrome to use a specific keychain and to save data from/to this keychain?
Since v. 45 of chrome passwords are not synced to the OSX keychain anymore, the support has been dropped completely.

https://code.google.com/p/chromium/issues/detail?id=466638


  Remove OS X Keychain integration for saved passwords
  
  Starting in OS X 10.9, Apple introduced the iCloud Keychain. This manifests itself as the “Local Items” keychain in Keychain Access. Items in this keychain are only accessible to applications with the keychain-access-groups entitlement [1][2]. This, like other iCloud entitlements, is “available only to apps submitted to the App Store or to the Mac App Store” [3].
  
  The effect of this is that on 10.9 and 10.10, passwords stored in Safari are not accessible to Chrome (but passwords originated in Chrome are still shared to Safari)


Later in the doc:


  All the changes hit the 45 release. The plan is to get rid of the complicated Keychain code, thereby improving the robustness of the Chrome Password manager.