Shields settings are not cleared via clear browsing dialog with non all time range

[simonhong]

Shields setting is only cleared with All time time range.
and shields settings is not counted.
When user opens clear browsing data dialog, it shows settings count by the sub-label.
that number doesn't include shields setting.

Steps to reproduce

1. Launch browser with clean profile
2. Load www.brave.com and turn off Cross-site trackers blocked via shields panel
3. Launch Clear browsing data dialog via brave://settings/clearBrowserData
4. Check Site Settings have 1 Site as a label with Last hour time range
5. Push clear button and check label has None
6. Load www.brave.com and check Cross-site trackers blocked is turned

[btlechowski]

Verification passed on

Brave	1.7.71 Chromium: 80.0.3987.149 (Official Build) dev (64-bit)
Revision	5f4eb224680e5d7dca88504586e9fd951840cac6-refs/branch-heads/3987_137@{#16}
OS	Ubuntu 18.04 LTS

Verified test plan from the description

Verified 1 site is shown in Clear browsing data under Site and Shield Settings

• Verified that shield settings are reverted to default after clearing browsing data for Last hour.
• Verified that shield settings are reverted to default after clearing browsing data for All time hour.
• Verified that clearing Site and Shield Settings on exit works
• Verified that there is 0 entries after clearing Site and Shield Settings

Verification passed on

Brave	1.7.74 Chromium: 80.0.3987.149 (Official Build) dev (64-bit)
Revision	5f4eb224680e5d7dca88504586e9fd951840cac6-refs/branch-heads/3987_137@{#16}
OS	Windows 10 OS Version 1803 (Build 17134.1006)

• Verified STR from the description
• Verified that shield settings are cleared along with site settings when Site and Shield settings
  checkbox is checked with Last hour range in Advanced settings in Clear browsing data dialog
• Verified that shield settings are reverted to default after clearing browsing data for Last hour
• Verified that shield settings are reverted to default after clearing browsing data for All time hours.
• Verified that clearing Site and Shield Settings on exit works
• Verified that there is 0 or None entries after clearing Site and Shield Settings in Clear browsing data

Verification PASSED on macOS 10.15.3 x64 Catalina using the following build:

Brave | 1.7.86 Chromium: 80.0.3987.163 (Official Build) (64-bit)
-- | --
Revision | e7fbe071abe9328cdce4ffedac9822435fbd3656-refs/branch-heads/3987@{#1037}
OS | macOS Version 10.15.3 (Build 19D76)

• Verified the STR/Cases outlined under Shields settings are not cleared via clear browsing dialog with non all time range #8231 (comment)

• Verified that shield settings are cleared along with site settings when Site and Shield settings
  checkbox is checked with Last hour range in Advanced settings in Clear browsing data dialog
• Verified that shield settings are reverted to default after clearing browsing data for Last hour
• Verified that shield settings are reverted to default after clearing browsing data for All time hours.
• Verified that clearing Site and Shield Settings on exit works
• Verified that there is 0 or None entries after clearing Site and Shield Settings in Clear browsing data