Uh, shouldn't the class be `UIWebView`, not `NSClassFromString(@"WebView")`? (Specifically, the class name would be missing the UI prefix, and the string-class conversion is redundant.)
If Automatic reference counting (ARC) feature was enabled, the compiler would raise an error for the code `[NSClassFromString(@"WebView") _enableRemoteInspector];` : "No known class method for selector '_enableRemoteInspector.'"