Fixing bug 118933. Speeding up the id and name hash tables in nsHTMLDocument by changing them over from nsHashtable/nsStirngKey to pldhash. Also combining the hashes to optimize performance and memory useage. r=heikki@netscape.com, sr=jband@netscape.com.

git-svn-id: svn://10.0.0.236/trunk@112844 18797224-902f-48f8-a5cc-f745e15eee43

mozilla/content/html/document/src/nsImageDocument.cpp

@@ -224,9 +224,20 @@ NS_EXPORT nsresult
 NS_NewImageDocument(nsIDocument** aInstancePtrResult)
 {
   nsImageDocument* doc = new nsImageDocument();
-  if(doc)
-    return doc->QueryInterface(NS_GET_IID(nsIDocument), (void**) aInstancePtrResult);
-  return NS_ERROR_OUT_OF_MEMORY;
+  NS_ENSURE_TRUE(doc, NS_ERROR_OUT_OF_MEMORY);
+
+  nsresult rv = doc->Init();
+
+  if (NS_FAILED(rv)) {
+    delete doc;
+
+    return rv;
+  }
+
+  *aInstancePtrResult = doc;
+  NS_ADDREF(*aInstancePtrResult);
+
+  return NS_OK;
 }
 
 nsImageDocument::nsImageDocument()