Autolock

[mymindstorm]

No description provided.

[Sneezry]

Removing "persistent": false doesn't make sense.

Cookies itself has expires feature, and we can use this feature to handle auto lock.

[mymindstorm]

Basically:

Problem 1: Can't access cookie from background script

Solution: Move cookie to background script

Problem 2: Timeout in background doesn't work (likely due to content script getting unloaded)

Solution: Make background script persistent

After moving everything to background and then making it un-persistent, it becomes redundant to store the passphrase in a cookie so I removed it.

[Sneezry]

I think we needn't move cookie to background. When the user change auto lock settings in popup page, script runs in popup page can change the cookie. And when it's time cookie expires, browser should remove the cookie, and we do not need to do the removal in our code.

[mymindstorm]

How about this?