Bug 1693541 - Improve uses of nsBaseHashtable and descendants by using Contains instead of Get in toolkit/components/url-classifier. r=gcp

Differential Revision: https://phabricator.services.mozilla.com/D106110

toolkit/components/url-classifier/HashStore.cpp

@@ -153,7 +153,7 @@ nsresult TableUpdateV2::NewMissPrefix(const Prefix& aPrefix) {
 void TableUpdateV4::NewPrefixes(int32_t aSize, const nsACString& aPrefixes) {
   NS_ENSURE_TRUE_VOID(aSize >= 4 && aSize <= COMPLETE_SIZE);
   NS_ENSURE_TRUE_VOID(aPrefixes.Length() % aSize == 0);
-  NS_ENSURE_TRUE_VOID(!mPrefixesMap.Get(aSize));
+  NS_ENSURE_TRUE_VOID(!mPrefixesMap.Contains(aSize));
 
   int numOfPrefixes = aPrefixes.Length() / aSize;