Always fetch custom urls

[emerick]

Resolves brave/brave-browser#12281

Test Plan:

• Clean profile
• Enable Rewards
• Visit https://www.youtube.com/channel/UCCs7AQEDwrHEc86r0NNXE_A
• Open Rewards Panel and confirm that Lauren Rees is shown
• Click Youtube logo at top of page
• Click on a creator's name that points to a custom URL (you can check if it's a custom URL by hovering over the creator name and looking at the gray status bar in the bottom left of the browser window - if the URL starts like this https://youtube.com/c/... it's a custom URL)
• Open Rewards panel and confirm that creator's name is shown and not Lauren Rees

[zenparsing]

Is getChannelIdFromChannelPage no longer used?

[emerick]

Good catch, removed.

[kjozwiak]

Verification PASSED on macOS 10.15.7 x64 using the following build:

Brave | 1.18.10 Chromium: 86.0.4240.111 (Official Build) nightly (x86_64)
-- | --
Revision | b8c36128a06ebad76af51591bfec980224db5522-refs/branch-heads/4240@{#1290}
OS | macOS Version 10.15.7 (Build 19H2)

Looks good on staging 👍 Started https://ci.brave.com/view/all-extensions/job/brave-core-ext-local-data-files-update-publish-dev/23/. Once the new component finished building, launched Brave via the following:

/Applications/Brave\ Browser.app/Contents/MacOS/Brave\ Browser --args --enable-logging=stderr --vmodule=brave_component=2 --use-dev-goupdater-url --rewards=staging=true --brave-ads-staging

Ensured that the new component was pulled/downloaded as per the following:

[42611:775:1026/153546.580266:VERBOSE2:brave_component.cc(59)] component ready: {
   "description": "Brave Local Data Files Updater extension",
   "key": "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAs4TIQXRCftLpGmQZxmm6AU8pqGKLoDyi537HGQyRKcK7j/CSXCf3vwJr7xkV72p7bayutuzyNZ3740QxBPiesfBOp8bBb8d2VgTHP3b+SuNmK/rsSRsMRhT05x8AAr/7ab6U3rW0Gsalm2653xnnQS8vt0s62xQTmC+UMXowaSLUZ0Be/TOu6lHZhOeo0NBMKc6PkOu0R1EEfP7dJR6SM/v4dBUBZ1HXcuziVbCXVyU51opZCMjlxyUlQR9pTGk+Zh5sDn1Vw1MwLnWiEfQ4EGL1V7GeI4vgLoOLgq7tmhEratHGCfC1IHm9luMACRr/ybMI6DQJOvgBvecb292FxQIDAQAB",
   "manifest_version": 2,
   "name": "Brave Local Data Files Updater",
   "version": "1.0.39"
}

• double checked brave://components and ensured that Brave Local Data Updater - Version: 1.0.39 was being used
• verified the STR/Cases outlined via Wrong publisher in Rewards Panel on youtube brave-browser#12281

[LaurenWags]

Verified passed on macOS 10.14.6 using

Brave | 1.16.68 Chromium: 86.0.4240.111 (Official Build) (x86_64)
-- | --
Revision | b8c36128a06ebad76af51591bfec980224db5522-refs/branch-heads/4240@{#1290}
OS | macOS Version 10.14.6 (Build 18G6032)

Confirmed expected component (using --use-dev-goupdater-url flag):

[6604:775:1026/154251.384851:VERBOSE2:brave_component.cc(59)] component ready: {
   "description": "Brave Local Data Files Updater extension",
   "key": "MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEAs4TIQXRCftLpGmQZxmm6AU8pqGKLoDyi537HGQyRKcK7j/CSXCf3vwJr7xkV72p7bayutuzyNZ3740QxBPiesfBOp8bBb8d2VgTHP3b+SuNmK/rsSRsMRhT05x8AAr/7ab6U3rW0Gsalm2653xnnQS8vt0s62xQTmC+UMXowaSLUZ0Be/TOu6lHZhOeo0NBMKc6PkOu0R1EEfP7dJR6SM/v4dBUBZ1HXcuziVbCXVyU51opZCMjlxyUlQR9pTGk+Zh5sDn1Vw1MwLnWiEfQ4EGL1V7GeI4vgLoOLgq7tmhEratHGCfC1IHm9luMACRr/ybMI6DQJOvgBvecb292FxQIDAQAB",
   "manifest_version": 2,
   "name": "Brave Local Data Files Updater",
   "version": "1.0.39"
}

Confirmed 1.0.39 listed for Brave Local Data Updater under brave://components:

Verified STR from brave/brave-browser#12281