First patch in making destructors of refcounted objects private.

base/directory_watcher_win.cc

Index: base/directory_watcher_win.cc
===================================================================
--- base/directory_watcher_win.cc	(revision 30973)
+++ base/directory_watcher_win.cc	(working copy)
@@ -15,7 +15,6 @@
                              public base::ObjectWatcher::Delegate {
  public:
   DirectoryWatcherImpl() : delegate_(NULL), handle_(INVALID_HANDLE_VALUE) {}
-  virtual ~DirectoryWatcherImpl();
 
   virtual bool Watch(const FilePath& path, DirectoryWatcher::Delegate* delegate,
                      MessageLoop* backend_loop, bool recursive);
@@ -24,6 +23,8 @@
   virtual void OnObjectSignaled(HANDLE object);
 
  private:
+  virtual ~DirectoryWatcherImpl();
+
   // Delegate to notify upon changes.
   DirectoryWatcher::Delegate* delegate_;
   // Path we're watching (passed to delegate).