imported pinned sites do not display favicons when they become Tips

[LaurenWags]

Description

If you have pinned sites and they are converted to recurring tips, favicons are not displaying.
Note - per discussion in Slack with @NejcZdovc , media publishers will not display favicons but sites should be.

Steps to Reproduce

1. Have a muon profile with Payments enabled and at least a couple pinned sites set up.
2. Close muon. Verify no profile exists for release b-c.
3. Launch b-c with --upgrade-from-muon flag.
4. Data is imported.
5. Navigate to Rewards page.

Actual result:

No favicons for sites:

Expected result:

Sites (except media publishers) should have favicons.

Reproduces how often:

easily

Brave version (brave://version info)

Brave	0.57.15 Chromium: 71.0.3578.75 (Official Build) (64-bit)
Revision	06ef00b5279f93f8e0c1e73acedd49d7dcc09767-refs/branch-heads/3578@{#836}
OS	Mac OS X

Reproducible on current release:

• Does it reproduce on brave-browser dev/beta builds? n/a

Website problems only:

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

Additional Information

[LaurenWags]

Still not seeing favicons for imported tips:

Using

Brave	0.57.16 Chromium: 71.0.3578.80 (Official Build) (64-bit)
Revision	2ac50e7249fbd55e6f517a28131605c9fb9fe897-refs/branch-heads/3578@{#860}
OS	Mac OS X

cc @NejcZdovc @bsclifton @rebron @kjozwiak

[LaurenWags]

Update - need to visit the sites in Tips panel and then refresh brave://rewards to see the favicons.

[LaurenWags]

Verified passed with

Brave	0.57.16 Chromium: 71.0.3578.80 (Official Build) (64-bit)
Revision	2ac50e7249fbd55e6f517a28131605c9fb9fe897-refs/branch-heads/3578@{#860}
OS	Mac OS X

• Verified STR from description then did extra steps in imported pinned sites do not display favicons when they become Tips #2355 (comment) per discussion in Slack to see favicons.

Verification Passed on

Brave	0.57.17 Chromium: 71.0.3578.80 (Official Build) (64-bit)
Revision	2ac50e7249fbd55e6f517a28131605c9fb9fe897-refs/branch-heads/3578@{#860}
OS	Windows 7

Verification Passed on

Brave	0.57.17 Chromium: 71.0.3578.80 (Official Build) (64-bit)
Revision	2ac50e7249fbd55e6f517a28131605c9fb9fe897-refs/branch-heads/3578@{#860}
OS	Linux