[dotnet] Hide unnecessary chromium public fields

[nvborisenko]

This pull request makes a small but important change to the ChromiumDriver class by changing the visibility of several static fields from public to protected. This limits their accessibility to the class itself and its subclasses, rather than exposing them publicly.

• Changed the visibility of the following static fields from public to protected in ChromiumDriver.cs:
  • AcceptUntrustedCertificates
  • ExecuteCdp
  • GetCastSinksCommand
  • SelectCastSinkCommand
  • StartCastTabMirroringCommand
  • StartCastDesktopMirroringCommand
  • GetCastIssueMessageCommand
  • StopCastingCommand
  • GetNetworkConditionsCommand
  • SetNetworkConditionsCommand
  • DeleteNetworkConditionsCommand
  • SendChromeCommand
  • SendChromeCommandWithResult
  • LaunchAppCommand
  • SetPermissionCommand

💡 Additional Considerations

Hopefully nobody even knows it exists. So just "remove".

🔄 Types of changes

• Cleanup (formatting, renaming)
• Breaking change (fix or feature that would cause existing functionality to change)

[qodo-code-review]

PR Type

Enhancement

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Description

• Reduce public API surface by hiding internal Chromium fields

• Change 15 static fields from public to protected visibility

• Prevent external code from depending on internal implementation details

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File Walkthrough

Relevant files

Enhancement

ChromiumDriver.cs Reduce public API surface for Chromium driver                        dotnet/src/webdriver/Chromium/ChromiumDriver.cs Changed visibility of 15 static readonly fields from public to protected Fields include command constants and configuration flags used internally Maintains functionality while reducing public API surface Affects: AcceptUntrustedCertificates, ExecuteCdp, GetCastSinksCommand, SelectCastSinkCommand, StartCastTabMirroringCommand, StartCastDesktopMirroringCommand, GetCastIssueMessageCommand, StopCastingCommand, GetNetworkConditionsCommand, SetNetworkConditionsCommand, DeleteNetworkConditionsCommand, SendChromeCommand, SendChromeCommandWithResult, LaunchAppCommand, SetPermissionCommand +15/-15

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[qodo-code-review]

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🟢	No security concerns identified No security vulnerabilities detected by AI analysis. Human verification advised for critical code.
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[qodo-code-review]

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[Copilot]

Pull request overview

This PR reduces the public API surface of the .NET ChromiumDriver by changing several command-name/static fields from public to protected, limiting access to subclasses (e.g., ChromeDriver, EdgeDriver) rather than all consumers.

Changes:

• Changed multiple ChromiumDriver static fields (command names and AcceptUntrustedCertificates) from public to protected.

[Copilot]

Changing these members from public to protected is a breaking source and binary API change (existing compiled consumers can start throwing MissingFieldException). Repo guidance calls out maintaining API/ABI compatibility and using a deprecation cycle before removing public functionality (see AGENTS.md:12 and AGENTS.md:65-67; dotnet/AGENTS.md:26-30). Consider keeping the public fields for now but marking them [Obsolete] (and optionally [EditorBrowsable(EditorBrowsableState.Never)]) so they’re hidden from IntelliSense, then remove in a later release.