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30 #import "WebCoreNSURLExtras.h"
32 #import <pal/spi/cf/CFNetworkSPI.h>
33 #import <wtf/Function.h>
34 #import <wtf/ObjCRuntimeExtras.h>
35 #import <wtf/RetainPtr.h>
36 #import <wtf/Vector.h>
37 #import <unicode/uchar.h>
38 #import <unicode/uidna.h>
39 #import <unicode/uscript.h>
43 NSURL *URLByCanonicalizingURL(NSURL *URL)
45 RetainPtr<NSURLRequest> request = adoptNS([[NSURLRequest alloc] initWithURL:URL]);
46 Class concreteClass = [NSURLProtocol _protocolClassForRequest:request.get()];
51 // This applies NSURL's concept of canonicalization, but not URL's concept. It would
52 // make sense to apply both, but when we tried that it caused a performance degradation
53 // (see 5315926). It might make sense to apply only the URL concept and not the NSURL
54 // concept, but it's too risky to make that change for WebKit 3.0.
55 NSURLRequest *newRequest = [concreteClass canonicalRequestForRequest:request.get()];
56 NSURL *newURL = [newRequest URL];
57 return [[newURL retain] autorelease];
60 } // namespace WebCore