RefCounted types should not have public destructors, chrome/browser/ part 5

chrome/browser/prefs/testing_pref_store.h

Index: chrome/browser/prefs/testing_pref_store.h
diff --git a/chrome/browser/prefs/testing_pref_store.h b/chrome/browser/prefs/testing_pref_store.h
index 9cda82114fdc8d6acf926fd914d32d0c4c6f7761..f7e2623cf8b654f6efa9646794c0d298f510321f 100644
--- a/chrome/browser/prefs/testing_pref_store.h
+++ b/chrome/browser/prefs/testing_pref_store.h
@@ -20,7 +20,6 @@
 class TestingPrefStore : public PersistentPrefStore {
  public:
   TestingPrefStore();
-  virtual ~TestingPrefStore();
 
   // Overriden from PrefStore.
   virtual ReadResult GetValue(const std::string& key,
@@ -65,6 +64,9 @@ class TestingPrefStore : public PersistentPrefStore {
   // |TestingPrefStore|.
   virtual void set_read_only(bool read_only);
 
+ protected:
+  virtual ~TestingPrefStore();
+
  private:
   // Stores the preference values.
   PrefValueMap prefs_;