https://bugs.webkit.org/show_bug.cgi?id=124113

Reviewed by Anders Carlsson.

* Shared/API/c/cf/WKURLCF.mm:
(WKURLCopyCFURL): Replaced some code with a call to createCFURLFromBuffer(), which does the
same thing.

* Shared/Cocoa/WKNSURLExtras.h: Added.
* Shared/Cocoa/WKNSURLExtras.mm: Added.
(+[NSURL _web_URLWithWTFString:relativeToURL:]): Added. Returns nil for the null String,
otherwise returns the result of createCFURLFromBuffer().

* UIProcess/API/Cocoa/WKBackForwardListItem.mm:
(-[WKBackForwardListItem URL]): Changed to use +_web_URLWithWTFString:relativeToURL:.
(-[WKBackForwardListItem originalURL]): Ditto.

* UIProcess/API/Cocoa/WKNavigationData.mm:
(-[WKNavigationData destinationURL]): Ditto.

* UIProcess/API/mac/WKBrowsingContextController.mm:
(-[WKBrowsingContextController unreachableURL]): Ditto.

* WebKit2.xcodeproj/project.pbxproj: Added references to new files.



git-svn-id: http://svn.webkit.org/repository/webkit/trunk@159016 268f45cc-cd09-0410-ab3c-d52691b4dbfc