Bug 758992 - Make the classes which use the XPCOM nsISupports implementation macros final, to avoid the warning about deleting using a pointer to a base class with virtual functions and no virtual dtor (more uriloader parts); r=bzbarsky

uriloader/base/nsURILoader.cpp

@@ -46,6 +46,7 @@
 #include "nsMimeTypes.h"
 
 #include "nsDocLoader.h"
+#include "mozilla/Attributes.h"
 
 #include "mozilla/FunctionTimer.h"
 #ifdef NS_FUNCTION_TIMER
@@ -74,7 +75,7 @@ PRLogModuleInfo* nsURILoader::mLog = nsnull;
  * Each instance remains alive until its target URL has been loaded
  * (or aborted).
  */
-class nsDocumentOpenInfo : public nsIStreamListener
+class nsDocumentOpenInfo MOZ_FINAL : public nsIStreamListener
 {
 public:
   // Needed for nsCOMPtr to work right... Don't call this!