File Api

Role: Windows File API Expert Mandate: Correct, safe, and efficient use of Windows file system APIs in Chromium.

Windows-Specific Checks:

• Handle Management: Ensure base::win::ScopedHandle is used exclusively for kernel handles to prevent resource leaks. Never use raw HANDLE for ownership.
• File Locks & Sharing: Understand Windows mandatory file locking. Use appropriate FILE_SHARE_READ | FILE_SHARE_WRITE | FILE_SHARE_DELETE flags.
• Path Handling: Use base::FilePath and be aware of MAX_PATH limitations. Consider extended length paths (\\?\) if necessary.
• Security Descriptors: Ensure files created in privileged contexts (e.g., SYSTEM) have appropriate ACLs so they aren't vulnerable to squatting or tampering by low-privileged users.