Exempt intra-site requests from the query string filter

[fmarier]

We have in brave-core a query string filter which removes parameters known to be tracking individuals.

While the existing ones are pretty unlikely to conflict with legitimate query string parameters, some of the proposed ones are generic enough that they might break sites which use them for non-tracking purposes.

We are proposing the following change to the query string filter: exempt same-site requests from the filter.

[GeetaSarvadnya]

Verification passed on

Brave | 1.16.46 Chromium: 86.0.4240.55 (Official Build) nightly (64-bit)
-- | --
Revision | a6d625ef6f7fe8ea0675f1cf759155a05ee1be40-refs/branch-heads/4240@{#953}
OS | Windows 10 OS Version 1903 (Build 18362.1016)

• Verified the test plan from Same site query filter  brave-core#6609
• Cross-site tests are not working as expected Logged Cross-site tests are not working as expected #11930

Verifications for Redirected same-site tests

• Verified that the fbclid parameter is present on the landing page, and the gclid parameter is missing in the intermediate step.
  
  

Verifications for Same-site tests

• Verified that the fbclid parameter is present on the landing page.
  
  

---

Verification passed on

Brave	1.16.46 Chromium: 86.0.4240.55 (Official Build) nightly (64-bit)
Revision	a6d625ef6f7fe8ea0675f1cf759155a05ee1be40-refs/branch-heads/4240@{#953}
OS	Ubuntu 18.04 LTS

• Verified the test plan from Same site query filter  brave-core#6609
• All cases in this issue fail due to Direct navigations are wrongly exempted from the query string filter #11924

---

Verified passed with

Brave | 1.16.52 Chromium: 86.0.4240.68 (Official Build) dev (x86_64)
-- | --
Revision | ad72ee9aa8e15ed300df1238e76c7a8f4d686f97-refs/branch-heads/4240@{#1097}
OS | macOS Version 10.14.6 (Build 18G3020)

Verified test plan from brave/brave-core#6609

Encountered #11924 and #11930

[srirambv]

Verification passed on Samsung Tab A with Android 10 running 1.16.69 x64 build

• Verified all scenarios works as expected from Same site query filter  brave-core#6609

---

Verification passed on OnePlus 6T with Android 10 running 1.16.69 x64 build

• Verified all scenarios works as expected from Same site query filter  brave-core#6609