Brave News Sources Migration

One of the issues we have with the Brave News V2 work is that we need to ensure that the user doesn’t lose access to any of their subscriptions when we switch over to the new list of feeds (which doesn’t contain all of the sources in the old feed list).

Our proposed solution here is to add the feeds which have disappeared, that the user was subscribed to to the user’s direct feeds. This means, that for a while at least, we’ll need to keep the old sources.json files available.

[srirambv]

Verification passed on Oppo Reno 5 with Android 12 running 1.46.87 x64 beta build

• Verified steps from brave/brave-core#14565
• Verified manually enabled source is listed under Your sources post migration

https://user-images.githubusercontent.com/17010094/199657735-6ac9c1c9-4c6e-46a2-bd71-19a185194c11.mp4

[btlechowski]

Verification passed on

Brave	1.46.117 Chromium: 107.0.5304.110 (Official Build) beta (64-bit)
Revision	2a558545ab7e6fb8177002bf44d4fc1717cb2998-refs/branch-heads/5304@{#1202}
OS	Ubuntu 18.04 LTS

Steps:

1. Install 1.45.x
2. opened a new-tab page
3. scrolled down
4. clicked on Show Brave News
5. clicked on Customize
6. clicked on Brave News
7. clicked on All Sources
8. toggled Hollywood Life to Enabled
9. install 1.46.x
10. clicked on Relaunch
11. click to open NTP
12. confirmed Brave News is still enabled
13. click Customize
14. click Brave News
15. new Brave News UI displayed

Confirmed Hollywood Life feed source displayed on the left panel of the Following section

1.45.x

1.46.x