sizeof(PLHashEntry),
sizeof(Entry),
InMemoryDataSource::InMemoryDataSource(nsISupports* aOuter){    NS_INIT_AGGREGATED(aOuter);    static const size_t kBucketSizes[] = {        sizeof(Assertion),        sizeof(PLHashEntry),        sizeof(InMemoryArcsEnumeratorImpl),        sizeof(InMemoryAssertionEnumeratorImpl) };    static const PRInt32 kNumBuckets = sizeof(kBucketSizes) / sizeof(size_t);    // Per news://news.mozilla.org/39BEC105.5090206%40netscape.com    static const PRInt32 kInitialSize = 1024;    mAllocator.Init("nsInMemoryDataSource", kBucketSizes, kNumBuckets, kInitialSize);#ifdef MOZ_THREADSAFE_RDF    mLock = nsnull;#endif}