2. Re-block running insecure content when frame closed

fix brave#3770

Auditors: @diracdeltas

Test Plan:
For re-block option:
1. Go to `https://mixed-script.badssl.com/`
2. Click urlIcon and click `Load Unsafe Scripts`
3. Background should be red
4. Click urlIcon and click `Stop Loading Unsafe Scripts`
5. Background should be grey

For re-blocked on frame closed
1. Go to `https://mixed-script.badssl.com/`
2. Click urlIcon and click `Load Unsafe Scripts`
3. Background should be red
4. Close tab
5. Go to `https://mixed-script.badssl.com/` on new tab again
6. Background should be grey

… scope

fix brave#3793

Auditors: @diracdeltas

Test Plan:
For regular frame:
1. Go to https://mixed-script.badssl.com
2. Click urlIcon and click Load Unsafe Scripts
3. Background should be red
4. Go to https://mixed-script.badssl.com by regular new tab
5. Background should be grey
6. Go to https://mixed-script.badssl.com by private new tab
7. Background should be grey

For private frame:
1. Go to https://mixed-script.badssl.com by private tab
2. Click urlIcon and click Load Unsafe Scripts
3. Background should be red
4. Go to https://mixed-script.badssl.com by regular new tab
5. Background should be grey
6. Go to https://mixed-script.badssl.com by private new tab
7. Background should be grey