Reassign Copy keyboard shortcut to 'copy clean link'

[spylogsster]

Resolves brave/brave-browser#26761

Added few functions to TextfieldController because we cannot reach the omibox model directly from ui layer

Copy Clean Link is default for urls:

Copy is default for text:

Submitter Checklist:

• I confirm that no security/privacy review is needed, or that I have requested one
• There is a ticket for my issue
• Used Github auto-closing keywords in the PR description above
• Wrote a good PR/commit description
• Squashed any review feedback or "fixup" commits before merge, so that history is a record of what happened in the repo, not your PR
• Added appropriate labels (QA/Yes or QA/No; release-notes/include or release-notes/exclude; OS/...) to the associated issue
• Checked the PR locally: npm run test -- brave_browser_tests, npm run test -- brave_unit_tests, npm run lint, npm run gn_check, npm run tslint
• Ran git rebase master (if needed)

Reviewer Checklist:

• A security review is not needed, or a link to one is included in the PR description
• New files have MPL-2.0 license header
• Adequate test coverage exists to prevent regressions
• Major classes, functions and non-trivial code blocks are well-commented
• Changes in component dependencies are properly reflected in gn
• Code follows the style guide
• Test plan is specified in PR before merging

After-merge Checklist:

• The associated issue milestone is set to the smallest version that the
  changes has landed on
• All relevant documentation has been updated, for instance:
  • https://github.com/brave/brave-browser/wiki/Deviations-from-Chromium-(features-we-disable-or-remove)
  • https://github.com/brave/brave-browser/wiki/Proxy-redirected-URLs
  • https://github.com/brave/brave-browser/wiki/Fingerprinting-Protections
  • https://github.com/brave/brave-browser/wiki/Brave%E2%80%99s-Use-of-Referral-Codes
  • https://github.com/brave/brave-browser/wiki/Custom-Headers
  • https://github.com/brave/brave-browser/wiki/Web-Compatibility-Exceptions-in-Brave
  • https://github.com/brave/brave-browser/wiki/QA-Guide
  • https://github.com/brave/brave-browser/wiki/P3A

Test Plan:

1. Open https://brave.com/?utm_campaign=1234.
2. Click in the URL bar and select the URL.
3. Use the keyboard shortcut to copy (e.g. Ctrl+c on Windows).
4. Paste in a text editor
5. Check that only https://brave.com/ was copied. The utm_campaign parameter was removed.

[fmarier]

FYI, we've added a check in CI that looks for an HTTPS URL here and so you'll probably need to change that to https://mozilla.org/MPL/2.0/ before merging.

[spylogsster]

done

[bridiver]

We should not have to make all of these changes just for the shortcut. I need to dig in a little and for now just want to make sure no one else approves

[github-actions]

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commit: c90d78a
reason: unsigned
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cc: @spylogsster

[spylogsster]

Closing this PR because it was split for 2 smaller ones:

• Reassign Ctrl/Cmd + C default hotkey to copy clean urls #16764
• Assign Copy keyboard shortcut to 'copy clean link' (Mac App Menu part) #16746