Default ad-block settings doesn't work as intended

[srirambv]

Description

While verifying #1288 found changing shields settings in preferences doesn't work as intended

Steps to Reproduce

1. Clean launch profile
2. Visit dailymail.co.uk in a new tab, ensure ads/trackers are blocked
3. Change default ad settings to Allow all ads and trackers
4. Go back to dailymail.co.uk tab and reload, shields still shows 3 blocked items all tracking scripts
5. Change back default ad settings to Block ads and trackers
6. Reload dailymail.co.uk and toggle ad settings in shields, count show 0, page loads all tracking scripts and ads on the page

Actual result:

https://youtu.be/l75ZWlgbySA

Expected result:

Should work as intended setting is set

Reproduces how often:

Easy

Brave version (chrome://version info)

Brave	0.55.10 Chromium: 70.0.3538.22 (Official Build) beta (64-bit)
Revision	ac9418ba9c3bd7f6baaffa0b055dfe147e0f8364-refs/branch-heads/3538@{#468}
OS	Windows

Reproducible on current release:

No b-l settings work as expected

Website problems only:

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

Additional Information

#1288

[bbondy]

Pretty sure it was all working correctly except for just the ad-block setting, but that should be fixed with the latest merge.

[LaurenWags]

Verified passed on

Brave	0.55.12 Chromium: 70.0.3538.45 (Official Build) beta(64-bit)
Revision	cbdc32e4334458954e9def214d7e5fa1ca1960eb-refs/branch-heads/3538@{#830}
OS	Mac OS X

• Verified STR from description

Verification Passed on

Brave	0.55.13 Chromium: 70.0.3538.54 (Official Build) beta (64-bit)
Revision	4f8e578b6680574714e9ed3bb9f02922b4dde40d-refs/branch-heads/3538@{#937}
OS	Windows

• Verified STR from description

Verification Passed on

Brave	0.55.14 Chromium: 70.0.3538.54 (Official Build) beta(64-bit)
Revision	4f8e578b6680574714e9ed3bb9f02922b4dde40d-refs/branch-heads/3538@{#937}
OS	Linux