NativeClient doesn't get access to the desktop file system just because it runs apps at desktop speeds. The sandboxing setup forces it to go through the browser

NativeClient doesn't get access to the desktop file system just because it runs apps at desktop speeds. The sandboxing setup forces it to go through the browser to get to the filesystem. Currently interfacing with JS is the only way for NaCl to do this, and in the future where NPAPI might allow to use browser APIs through language of choice, you'll still have to use trusted browser APIs for security.