Standardize usage of virtual/override/final in content/

content/child/webmessageportchannel_impl.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_CHILD_WEBMESSAGEPORTCHANNEL_IMPL_H_
 #define CONTENT_CHILD_WEBMESSAGEPORTCHANNEL_IMPL_H_
 
 #include <queue>
 #include <vector>
 
@@ skipping 34 matching lines @@
   static std::vector<int> ExtractMessagePortIDs(
       blink::WebMessagePortChannelArray* channels);
 
   // Queues received and incoming messages until there are no more in-flight
   // messages, then sends all of them to the browser process.
   void QueueMessages();
   int message_port_id() const { return message_port_id_; }
 
  private:
   friend class base::RefCountedThreadSafe<WebMessagePortChannelImpl>;
-  virtual ~WebMessagePortChannelImpl();
+  ~WebMessagePortChannelImpl() override;
 
   // WebMessagePortChannel implementation.
   virtual void setClient(blink::WebMessagePortChannelClient* client);
   virtual void destroy();
   virtual void postMessage(const blink::WebString& message,
                            blink::WebMessagePortChannelArray* channels);
   virtual bool tryGetMessage(blink::WebString* message,
                              blink::WebMessagePortChannelArray& channels);
 
   void Init();
   void Entangle(scoped_refptr<WebMessagePortChannelImpl> channel);
   void Send(IPC::Message* message);
   void PostMessage(const base::string16& message,
                    blink::WebMessagePortChannelArray* channels);
 
   // IPC::Listener implementation.
-  virtual bool OnMessageReceived(const IPC::Message& message) override;
+  bool OnMessageReceived(const IPC::Message& message) override;
 
   void OnMessage(const base::string16& message,
                  const std::vector<int>& sent_message_port_ids,
                  const std::vector<int>& new_routing_ids);
   void OnMessagesQueued();
 
   struct Message {
     Message();
     ~Message();
 
@@ skipping 10 matching lines @@
   int route_id_;  // The routing id for this object.
   int message_port_id_;  // A globally unique identifier for this message port.
   scoped_refptr<base::MessageLoopProxy> child_thread_loop_;
 
   DISALLOW_COPY_AND_ASSIGN(WebMessagePortChannelImpl);
 };
 
 }  // namespace content
 
 #endif  // CONTENT_CHILD_WEBMESSAGEPORTCHANNEL_IMPL_H_