[P3A] Sent status is not recorded on upgrade [Follow up to #8084]

[srirambv]

Description

[P3A] Sent status is not recorded on upgrade [Follow up to #8084]

Steps to Reproduce

1. Clean profile 1.3.115
2. Open brave://local-state
3. Check P3A stats, sent is false no timestamp is recorded for all stats
4. Upgrade to 1.3.116
5. Close brave and launch using brave-browser --p3a-rotation-interval-seconds=5

Actual result:

Sent value is not updated

Expected result:

Sent value should be updated

Reproduces how often:

Easy

Brave version (brave://version info)

Brave	1.3.116 Chromium: 80.0.3987.106 (Official Build) (64-bit)
Revision	f68069574609230cf9b635cd784cfb1bf81bb53a-refs/branch-heads/3987@{#882}
OS	Linux

Version/Channel Information:

• Can you reproduce this issue with the current release? NA
• Can you reproduce this issue with the beta channel? Yes
• Can you reproduce this issue with the dev channel? Yes
• Can you reproduce this issue with the nightly channel? Yes

Other Additional Information:

• Does the issue resolve itself when disabling Brave Shields? NA
• Does the issue resolve itself when disabling Brave Rewards? NA
• Is the issue reproducible on the latest version of Chrome? NA

Miscellaneous Information:

Issue reproduced by @GeetaSarvadnya
cc: @iefremov @rebron

[GeetaSarvadnya]

Reproduced in windows 10 x64 - 1.3.116

[iefremov]

there is a backoff delay right after the browser start. For how long have you been waiting? @GeetaSarvadnya

[GeetaSarvadnya]

@iefremov I have waited for almost 2 mins after the browser restart

[iefremov]

ah, sorry, this is probably because of the wrong flag. No just restart browser without --p3a-rotation-interval-seconds=5. It doesn't let you actually send any data. I specified it in order to clean the sent state

[GeetaSarvadnya]

@iefremov @srirambv after upgrade without using the flag --p3a-rotation-interval-seconds=5. I am getting the expected results.

[iefremov]

Thank you @GeetaSarvadnya

[srirambv]

Confirmed working on Linux as well when browser is launched without the command line args

[srirambv]

Working as expected hence closing