void (*wkSetNSURLConnectionDefersCallbacks)(NSURLConnection *, BOOL);
void (*wkSetNSURLRequestShouldContentSniff)(NSMutableURLRequest *, BOOL);
id (*wkCreateNSURLConnectionDelegateProxy)(void);
-BOOL (*wkSupportsMultipartXMixedReplace)(NSMutableURLRequest *);
#ifdef BUILDING_ON_TIGER
void (*wkGetFontMetrics)(CGFontRef, int* ascent, int* descent, int* lineGap, unsigned* unitsPerEm);
+BOOL (*wkSupportsMultipartXMixedReplace)(NSMutableURLRequest *);
#endif