Focus-android: "Trackers blocked" re-enable only re-enables social trackers blocked

[rpappalax]

Summary

Possibly a cache issue? Only social trackers are blocked when re-enabling "Trackers blocked".
After app restart, however, all trackers show as being blocked. User shouldn't have to restart the app to fully re-enable "Trackers blocked" toggle.

Steps to reproduce

1. Open fmarier's tracking protection (TP) test page URL: https://mozilla.github.io/tracking-test/disconnect.html
2. Verify that orange (TP enabled) fox is visible with STOP sign and status listed as:
   Ads: correctly blocked
   Analytics: correctly blocked
   Social: correctly blocked
3. Click on 3-dot menu > Disable "Trackers blocked"
4. Verify that (TP disabled) black cat is visible and status listed as:
   Ads: incorrectly loaded
   Analytics: incorrectly loaded
   Social: incorrectly loaded
5. Click on 3-dot menu > re-enable "Trackers blocked"

Expected behavior

1. Verify that all categories of TP are re-enabled aka:

orange (TP enabled) fox is visible again with STOP sign and status listed as:
Ads: correctly blocked
Analytics: correctly blocked
Social: correctly blocked

Actual behavior

1. Observe that _only_ social category is re-enabled aka:

   (TP disabled) black cat is visible and status listed as:
   Ads: incorrectly loaded
   Analytics: incorrectly loaded
   Social: correctly blocked

2. Re-start Focus app
   Verify that all categories of TP are re-enabled aka:

orange (TP enabled) fox is visible again with STOP sign and status listed as:
Ads: correctly blocked
Analytics: correctly blocked
Social: correctly blocked

Screenshots

Trackers blocked - ENABLED

Trackers blocked - DISABLED

Trackers blocked - RE-ENABLED

Device information

• Android device: Nexus 6P, ver. 8.0.0, API 26
• Focus version: 6.3

[bbinto]

Is this in the debug build or release build?

[sblatz]

Confirmed this occurs on release build as well. I will investigate / own this ticket :)

[sblatz]

This is actually only an issue in WebView and does not exist in GeckoView.

cc: @bbinto, @Sdaswani to determine if this is still a priority.

[Sdaswani]

@sblatz I would think so since Webview will be our most used engine for at least a few months.