RefCounted types should not have public destructors, webkit/

webkit/database/database_quota_client_unittest.cc

Index: webkit/database/database_quota_client_unittest.cc
diff --git a/webkit/database/database_quota_client_unittest.cc b/webkit/database/database_quota_client_unittest.cc
index ee62722b0eb2b69a0570e752f7914f333719605b..9411b866195a507ea873ea7a22bc4af4a3264241 100644
--- a/webkit/database/database_quota_client_unittest.cc
+++ b/webkit/database/database_quota_client_unittest.cc
@@ -31,8 +31,6 @@ class MockDatabaseTracker : public DatabaseTracker {
         delete_called_count_(0),
         async_delete_(false) {}
 
-  virtual ~MockDatabaseTracker() {}
-
   virtual bool GetOriginInfo(
       const string16& origin_identifier,
       OriginInfo* info) OVERRIDE {
@@ -95,6 +93,9 @@ class MockDatabaseTracker : public DatabaseTracker {
   bool async_delete() { return async_delete_; }
   void set_async_delete(bool async) { async_delete_ = async; }
 
+ protected:
+  virtual ~MockDatabaseTracker() {}
+
  private:
   class MockOriginInfo : public OriginInfo {
    public: