Standardize usage of virtual/override/final in content/

content/plugin/webplugin_delegate_stub.h

 // 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.
 
 #ifndef CONTENT_PLUGIN_WEBPLUGIN_DELEGATE_STUB_H_
 #define CONTENT_PLUGIN_WEBPLUGIN_DELEGATE_STUB_H_
 
 #include <string>
 #include <vector>
 
@@ skipping 24 matching lines @@
 // Converts the IPC messages from WebPluginDelegateProxy into calls to the
 // actual WebPluginDelegateImpl object.
 class WebPluginDelegateStub : public IPC::Listener,
                               public IPC::Sender,
                               public base::RefCounted<WebPluginDelegateStub> {
  public:
   WebPluginDelegateStub(const std::string& mime_type, int instance_id,
                         PluginChannel* channel);
 
   // IPC::Listener implementation:
-  virtual bool OnMessageReceived(const IPC::Message& msg) override;
+  bool OnMessageReceived(const IPC::Message& msg) override;
 
   // IPC::Sender implementation:
-  virtual bool Send(IPC::Message* msg) override;
+  bool Send(IPC::Message* msg) override;
 
   int instance_id() { return instance_id_; }
   WebPluginDelegateImpl* delegate() { return delegate_; }
   WebPluginProxy* webplugin() { return webplugin_; }
 
  private:
   friend class base::RefCounted<WebPluginDelegateStub>;
 
-  virtual ~WebPluginDelegateStub();
+  ~WebPluginDelegateStub() override;
 
   // Message handlers for the WebPluginDelegate calls that are proxied from the
   // renderer over the IPC channel.
   void OnInit(const PluginMsg_Init_Params& params,
               bool* transparent,
               bool* result);
   void OnWillSendRequest(int id, const GURL& url, int http_status_code);
   void OnDidReceiveResponse(const PluginMsg_DidReceiveResponseParams& params);
   void OnDidReceiveData(int id, const std::vector<char>& buffer,
                         int data_offset);
@@ skipping 55 matching lines @@
 
   // The url of the main frame hosting the plugin.
   GURL page_url_;
 
   DISALLOW_IMPLICIT_CONSTRUCTORS(WebPluginDelegateStub);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_PLUGIN_WEBPLUGIN_DELEGATE_STUB_H_