RefCounted types should not have public destructors

chrome/browser/extensions/api/declarative_webrequest/webrequest_rules_registry_unittest.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "chrome/browser/extensions/api/declarative_webrequest/webrequest_rules_registry.h"
 
 #include <vector>
 
 #include "base/memory/linked_ptr.h"
 #include "base/message_loop.h"
@@ skipping 15 matching lines @@
 
 namespace extensions {
 
 namespace helpers = extension_web_request_api_helpers;
 namespace keys = declarative_webrequest_constants;
 namespace keys2 = url_matcher_constants;
 
 class TestWebRequestRulesRegistry : public WebRequestRulesRegistry {
  public:
   TestWebRequestRulesRegistry() : WebRequestRulesRegistry(NULL) {}
+
+ protected:
   virtual ~TestWebRequestRulesRegistry() {}
 
- protected:
   virtual base::Time GetExtensionInstallationTime(
       const std::string& extension_id) const {
     if (extension_id == kExtensionId)
       return base::Time() + base::TimeDelta::FromDays(1);
     else if (extension_id == kExtensionId2)
       return base::Time() + base::TimeDelta::FromDays(2);
     else
       return base::Time();
   }
 };
@@ skipping 272 matching lines @@
             winner->extension_install_time);
   EXPECT_EQ(GURL("http://www.bar.com"), winner->new_url);
 
   EXPECT_EQ(kExtensionId, loser->extension_id);
   EXPECT_EQ(base::Time() + base::TimeDelta::FromDays(1),
             loser->extension_install_time);
   EXPECT_EQ(GURL("http://www.foo.com"), loser->new_url);
 }
 
 }  // namespace extensions