RefCounted types should not have public destructors, content/browser part 1

content/browser/plugin_service_impl.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 "content/browser/plugin_service_impl.h"
 
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/compiler_specific.h"
 #include "base/file_path.h"
@@ skipping 78 matching lines @@
         BrowserThread::UI, FROM_HERE,
         base::Bind(&content::PluginService::PurgePluginListCache,
                    static_cast<content::BrowserContext*>(NULL), false));
   }
 
   virtual void OnFilePathError(const FilePath& path) OVERRIDE {
     // TODO(pastarmovj): Add some sensible error handling. Maybe silently
     // stopping the watcher would be enough. Or possibly restart it.
     NOTREACHED();
   }
+
+ protected:
+  virtual ~PluginDirWatcherDelegate() {}
 };
 #endif
 
 namespace content {
 // static
 PluginService* PluginService::GetInstance() {
   return PluginServiceImpl::GetInstance();
 }
 
 void PluginService::PurgePluginListCache(BrowserContext* browser_context,
@@ skipping 600 matching lines @@
   plugin_list_->RegisterInternalPlugin(info, add_at_beginning);
 }
 
 string16 PluginServiceImpl::GetPluginGroupName(const std::string& plugin_name) {
   return plugin_list_->GetPluginGroupName(plugin_name);
 }
 
 webkit::npapi::PluginList* PluginServiceImpl::GetPluginList() {
   return plugin_list_;
 }