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 xpcom and gonk parts); r=jrmuizel

xpcom/tests/TestTimers.cpp

@@ -14,6 +14,7 @@
 #include "nsThreadUtils.h"
 #include "prinrval.h"
 #include "prmon.h"
+#include "mozilla/Attributes.h"
 
 #include "mozilla/ReentrantMonitor.h"
 using namespace mozilla;
@@ -68,7 +69,7 @@ private:
   ReentrantMonitor* mReentrantMonitor;
 };
 
-class TimerCallback : public nsITimerCallback
+class TimerCallback MOZ_FINAL : public nsITimerCallback
 {
 public:
   NS_DECL_ISUPPORTS