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 xpconnect parts); r=bholley

js/xpconnect/tests/components/native/xpctest_private.h

@@ -15,8 +15,9 @@
 #include "nsStringGlue.h"
 #include "xpctest_attributes.h"
 #include "xpctest_params.h"
+#include "mozilla/Attributes.h"
 
-class xpcTestObjectReadOnly : public nsIXPCTestObjectReadOnly {
+class xpcTestObjectReadOnly MOZ_FINAL : public nsIXPCTestObjectReadOnly {
  public:
   NS_DECL_ISUPPORTS
   NS_DECL_NSIXPCTESTOBJECTREADONLY
@@ -30,7 +31,7 @@ class xpcTestObjectReadOnly : public nsIXPCTestObjectReadOnly {
     char    charProperty;
 };
 
-class xpcTestObjectReadWrite : public nsIXPCTestObjectReadWrite {
+class xpcTestObjectReadWrite MOZ_FINAL : public nsIXPCTestObjectReadWrite {
   public:
   NS_DECL_ISUPPORTS
   NS_DECL_NSIXPCTESTOBJECTREADWRITE
@@ -47,7 +48,7 @@ class xpcTestObjectReadWrite : public nsIXPCTestObjectReadWrite {
      char *stringProperty;
 };
 
-class nsXPCTestParams : public nsIXPCTestParams
+class nsXPCTestParams MOZ_FINAL : public nsIXPCTestParams
 {
 public:
     NS_DECL_ISUPPORTS