+
+ _private->iconURLToIcons = [[NSMutableDictionary alloc] init];
+ _private->iconURLToExtraRetainCount = CFDictionaryCreateMutable(NULL, 0, &kCFTypeDictionaryKeyCallBacks, NULL);
+ _private->pageURLToRetainCount = CFDictionaryCreateMutable(NULL, 0, &kCFTypeDictionaryKeyCallBacks, NULL);
+ _private->iconsToEraseWithURLs = [[NSMutableSet alloc] init];
+ _private->iconsToSaveWithURLs = [[NSMutableSet alloc] init];
+ _private->iconURLsWithNoIcons = [[NSMutableSet alloc] init];
+ _private->iconURLsBoundDuringPrivateBrowsing = [[NSMutableSet alloc] init];
+ _private->pageURLsBoundDuringPrivateBrowsing = [[NSMutableSet alloc] init];
+ _private->privateBrowsingEnabled = [[WebPreferences standardPreferences] privateBrowsingEnabled];
+