sync.seamlessAccountSwitching macOS/iOS overrides

[graeme]

Asana Task/Github Issue: https://app.asana.com/0/72649045549333/1209014391063074/f

Description

This adds a feature flag to macOS an iOS called seamlessAccountSwitching as a subfeature to sync to ship enabled. If there's an issue on launch, we'll disable it.

Feature change process:

• I have added a schema to validate this feature change
• I have tested this change locally
• This code for the config change is ready to merge
• This feature was covered by a tech design

Additional info:

• I have tested this change locally in all supported browsers
• This change will be visible to users
• This code for the config change is ready
• This change was covered by a ship review

Site breakage mitigation process:

Brief explanation

• Reported URL:

• Problems experienced:

• Platforms affected:

  • iOS
  • Android
  • Windows
  • MacOS
  • Extensions

• Tracker(s) being unblocked:

• Feature being disabled:

• I have referenced the URL of this PR as the "reason" value for the exception (where applicable).

• This change is a speculative mitigation to fix reported breakage.

Reference

• Config Reviewer Documentation
• Config Maintainer Documentation
• Feature Implementer Documentation

[github-actions]

Don't forget to add an individual reviewer (in addition to those already added, this should create a task for them in Asana).
- The best reviewer is most likely a feature or platform owner.
- If they've got permission to approve, you're good to merge. See CODEOWNERS
- As a fallback the Global owners are:
- Breakage AOR
- Breakage triagers
- Config AOR
Please mark this as draft unless there's intention to merge this.
Click the "Merge When Ready" if you're happy for this to automatically get merged once reviewed.
- If the option isn't available to you; ensure you've signed into DuckDuckGo oauth.
Also don't forget to add schema changes to validate if you're adding/changing a feature.

• Config Reviewer Documentation
• Config Maintainer Documentation
• Feature Implementer Documentation

[github-actions]

Generated file outputs:

Time updated: Tue, 28 Jan 2025 14:58:54 GMT

legacy

trackers-unprotected-temporary.txt (12 more)

• trackers-unprotected-temporary.txt
• v3/android-config.json
• v3/extension-brave-config.json
• v3/extension-bravemv3-config.json
• v3/extension-chrome-config.json
• v3/extension-chromemv3-config.json
• v3/extension-config.json
• v3/extension-edg-config.json
• v3/extension-edge-config.json
• v3/extension-edgmv3-config.json
• v3/extension-firefox-config.json
• v3/extension-safarimv3-config.json
• v3/windows-config.json

⚠️ File is identical

v3/ios-config.json (1 more)

• v3/ios-config.json
• v3/macos-config.json

--- v3/macos-config.json
+++ v3/macos-config.json
@@ -7355,8 +7355,11 @@
                     "state": "enabled"
                 },
                 "level3AllowCreateAccount": {
                     "state": "enabled"
+                },
+                "seamlessAccountSwitching": {
+                    "state": "enabled"
                 }
             },
             "exceptions": [],
             "minSupportedVersion": "1.70.0"

latest

v4/android-config.json (11 more)

• v4/android-config.json
• v4/extension-brave-config.json
• v4/extension-bravemv3-config.json
• v4/extension-chrome-config.json
• v4/extension-chromemv3-config.json
• v4/extension-config.json
• v4/extension-edg-config.json
• v4/extension-edge-config.json
• v4/extension-edgmv3-config.json
• v4/extension-firefox-config.json
• v4/extension-safarimv3-config.json
• v4/windows-config.json

⚠️ File is identical

v4/ios-config.json (1 more)

• v4/ios-config.json
• v4/macos-config.json

--- v4/macos-config.json
+++ v4/macos-config.json
@@ -6717,8 +6717,11 @@
                     "state": "enabled"
                 },
                 "level3AllowCreateAccount": {
                     "state": "enabled"
+                },
+                "seamlessAccountSwitching": {
+                    "state": "enabled"
                 }
             },
             "exceptions": [],
             "minSupportedVersion": "1.70.0"