Standardize usage of virtual/override/final in google_apis/

google_apis/gcm/engine/connection_handler_impl.h

 // Copyright 2013 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 GOOGLE_APIS_GCM_ENGINE_CONNECTION_HANDLER_IMPL_H_
 #define GOOGLE_APIS_GCM_ENGINE_CONNECTION_HANDLER_IMPL_H_
 
 #include "base/memory/weak_ptr.h"
 #include "base/time/time.h"
 #include "base/timer/timer.h"
@@ skipping 12 matching lines @@
   // |write_callback| will be invoked anytime a message has been successfully
   // sent. Note: this just means the data was sent to the wire, not that the
   // other end received it.
   // |connection_callback| will be invoked with any fatal read/write errors
   // encountered.
   ConnectionHandlerImpl(
       base::TimeDelta read_timeout,
       const ProtoReceivedCallback& read_callback,
       const ProtoSentCallback& write_callback,
       const ConnectionChangedCallback& connection_callback);
-  virtual ~ConnectionHandlerImpl();
+  ~ConnectionHandlerImpl() override;
 
   // ConnectionHandler implementation.
-  virtual void Init(const mcs_proto::LoginRequest& login_request,
-                    net::StreamSocket* socket) override;
-  virtual void Reset() override;
-  virtual bool CanSendMessage() const override;
-  virtual void SendMessage(const google::protobuf::MessageLite& message)
-      override;
+  void Init(const mcs_proto::LoginRequest& login_request,
+            net::StreamSocket* socket) override;
+  void Reset() override;
+  bool CanSendMessage() const override;
+  void SendMessage(const google::protobuf::MessageLite& message) override;
 
  private:
   // State machine for handling incoming data. See WaitForData(..) for usage.
   enum ProcessingState {
     // Processing the version, tag, and size packets (assuming minimum length
     // size packet). Only used during the login handshake.
     MCS_VERSION_TAG_AND_SIZE = 0,
     // Processing the tag and size packets (assuming minimum length size
     // packet). Used for normal messages.
     MCS_TAG_AND_SIZE,
@@ skipping 62 matching lines @@
   ConnectionChangedCallback connection_callback_;
 
   base::WeakPtrFactory<ConnectionHandlerImpl> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(ConnectionHandlerImpl);
 };
 
 }  // namespace gcm
 
 #endif  // GOOGLE_APIS_GCM_ENGINE_CONNECTION_HANDLER_IMPL_H_