@interface WebCoreStatistics : NSObject + (void)emptyCache; + (id)statistics; + (int)cachedPageCount; + (unsigned long long)javaScriptInterpretersCount; + (void)garbageCollectJavaScriptObjects; + (unsigned long long)iconRecordCount; + (unsigned long long)javaScriptProtectedObjectsCount; + (int)autoreleasedPageCount; + (unsigned long long)cachedFontDataCount; + (unsigned long long)cachedFontDataInactiveCount; + (int)cachedFrameCount; + (void)garbageCollectJavaScriptObjectsOnAlternateThreadForDebugging:(BOOL)a0; + (unsigned long long)glyphPageCount; + (unsigned long long)iconPageURLMappingCount; + (unsigned long long)iconRetainedPageURLCount; + (unsigned long long)iconsWithDataCount; + (unsigned long long)javaScriptGlobalObjectsCount; + (unsigned long long)javaScriptNoGCAllowedObjectsCount; + (id)javaScriptObjectTypeCounts; + (unsigned long long)javaScriptObjectsCount; + (unsigned long long)javaScriptProtectedGlobalObjectsCount; + (id)javaScriptProtectedObjectTypeCounts; + (unsigned long long)javaScriptReferencedObjectsCount; + (id)javaScriptRootObjectClasses; + (id)javaScriptRootObjectTypeCounts; + (id)memoryStatistics; + (void)purgeInactiveFontData; + (void)returnFreeMemoryToSystem; + (void)setCacheDisabled:(BOOL)a0; + (void)setJavaScriptGarbageCollectorTimerEnabled:(BOOL)a0; + (void)setShouldPrintExceptions:(BOOL)a0; + (BOOL)shouldPrintExceptions; + (void)startIgnoringWebCoreNodeLeaks; + (void)stopIgnoringWebCoreNodeLeaks; @end