data:application items blocked by shields can't be allowed to run

[srirambv]

Description

data:application items blocked by shields can't be allowed to run

Steps to Reproduce

1. Install 0.69.77
2. Visit https://theverge.com and block scripts
3. Click Allow scripts once until all first and third party scripts are loaded
4. Open scripts detailed view, shows 1 item blocked for data:application/ which cannot be allowed to run

Actual result:

Expected result:

Should not list something that cant be allowed to run via shields settings

Reproduces how often:

Easy

Brave version (brave://version info)

Brave	0.69.77 Chromium: 76.0.3809.62 (Official Build) nightly (64-bit)
Revision	7b77856b3aa34d72f246d12340fc1ded8b2c0e83-refs/branch-heads/3809@{#798}
OS	Linux

Version/Channel Information:

• Can you reproduce this issue with the current release? No
• Can you reproduce this issue with the beta channel? No
• Can you reproduce this issue with the dev channel? No
• Can you reproduce this issue with the nightly channel? Yes

Other Additional Information:

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

Miscellaneous Information:

[cezaraugusto]

@yrliou thoughts on this? AFAIK we can only block scripts via origin

[bsclifton]

In older builds (0.67.x and earlier), this was showing up before as null:

0.68.x and newer, this issue properly captures the bugged behavior

Discussion was had with @cezaraugusto, @yrliou, @bbondy, @AndriusA

Proposed fix would be:
Update blocking logic to allow for origin (existing behavior) OR full URL (covers this case)

[btlechowski]

Verification passed on

Brave	0.69.123 Chromium: 76.0.3809.132 (Official Build) beta (64-bit)
Revision	fd1acc410994a7a68ac25bc77513d443f3130860-refs/branch-heads/3809@{#1035}
OS	Ubuntu 18.04 LTS

Verified the test plan from the description

Verification passed on

Brave	0.69.123 Chromium: 76.0.3809.132 (Official Build) beta (64-bit)
Revision	fd1acc410994a7a68ac25bc77513d443f3130860-refs/branch-heads/3809@{#1035}
OS	Windows 10 OS Version 1803 (Build 17134.523)

• Verified the test plan from allow Shields to block urls with invalid origins brave-core#3210
• Verified that there are no blocked scripts count after allowing all the scripts
  

Verified passed with

Brave	0.69.124 Chromium: 76.0.3809.132 (Official Build) (64-bit)
Revision	fd1acc410994a7a68ac25bc77513d443f3130860-refs/branch-heads/3809@{#1035}
OS	Mac OS X

• Verified STR from description