Error when trying to save password

[bsclifton]

Description

Discovered via our error reporting:
https://stats.brave.com/dashboard#crash/5a95892d61aacc001f002e82

Error: Object has been destroyed at Object.passwordCallbacks.(anonymous function)
(/Applications/Brave.app/Contents/Resources/app.asar/app/browser/reducers/passwordManagerReducer.js:110:17)
  at EventEmitter.ipcMain.on
  (/Applications/Brave.app/Contents/Resources/app.asar/app/browser/reducers/passwordManagerReducer.js:22:33)
  at emitMany (events.js:132:20) at EventEmitter.emit (events.js:204:7)
  at WebContents.
  (/Applications/Brave.app/Contents/Resources/electron.asar/browser/api/web-contents.js:180:13)
  at emitTwo (events.js:106:13) at WebContents.emit (events.js:194:7)

Test plan / Steps to Reproduce

1. run brave from terminal
2. Use Brave as password manager (not extension)
3. Open a site which has login via password (e.g. twitter.com)
4. Login
5. Observe prompt to save password
6. Close tab which was used for login
7. Click save password

Actual result:

Error in console as above

Expected result:
No error in console and no crashes appearing under chrome://crashes/

Reproduces how often:

Brave Version

about:brave info:

Reproducible on current live release:

yes

Additional Information

[kjozwiak]

I went through #13408 (comment) and also ensured the following:

• ensured that clicking on Deny doesn't produce the original issue mentioned above
• ensured that clicking on Never for this site doesn't produce the original issue mentioned above