Update from chromium https://crrev.com/302282

net/tools/flip_server/streamer_interface.h

 // Copyright (c) 2011 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 NET_TOOLS_FLIP_SERVER_STREAMER_INTERFACE_H_
 #define NET_TOOLS_FLIP_SERVER_STREAMER_INTERFACE_H_
 
 #include <string>
 
 #include "base/compiler_specific.h"
 #include "net/tools/balsa/balsa_headers.h"
 #include "net/tools/balsa/balsa_visitor_interface.h"
 #include "net/tools/flip_server/sm_interface.h"
 
 namespace net {
 
 class BalsaFrame;
 class FlipAcceptor;
 class MemCacheIter;
 class SMConnection;
 class EpollServer;
 
 class StreamerSM : public BalsaVisitorInterface, public SMInterface {
  public:
   StreamerSM(SMConnection* connection,
              SMInterface* sm_other_interface,
              EpollServer* epoll_server,
              FlipAcceptor* acceptor);
-  virtual ~StreamerSM();
+  ~StreamerSM() override;
 
   void AddToOutputOrder(const MemCacheIter& mci) {}
 
-  virtual void InitSMInterface(SMInterface* sm_other_interface,
-                               int32 server_idx) override;
-  virtual void InitSMConnection(SMConnectionPoolInterface* connection_pool,
-                                SMInterface* sm_interface,
-                                EpollServer* epoll_server,
-                                int fd,
-                                std::string server_ip,
-                                std::string server_port,
-                                std::string remote_ip,
-                                bool use_ssl) override;
+  void InitSMInterface(SMInterface* sm_other_interface,
+                       int32 server_idx) override;
+  void InitSMConnection(SMConnectionPoolInterface* connection_pool,
+                        SMInterface* sm_interface,
+                        EpollServer* epoll_server,
+                        int fd,
+                        std::string server_ip,
+                        std::string server_port,
+                        std::string remote_ip,
+                        bool use_ssl) override;
 
-  virtual size_t ProcessReadInput(const char* data, size_t len) override;
-  virtual size_t ProcessWriteInput(const char* data, size_t len) override;
-  virtual bool MessageFullyRead() const override;
-  virtual void SetStreamID(uint32 stream_id) override {}
-  virtual bool Error() const override;
-  virtual const char* ErrorAsString() const override;
-  virtual void Reset() override;
-  virtual void ResetForNewInterface(int32 server_idx) override {}
-  virtual void ResetForNewConnection() override;
-  virtual void Cleanup() override;
-  virtual int PostAcceptHook() override;
-  virtual void NewStream(uint32 stream_id,
-                         uint32 priority,
-                         const std::string& filename) override {}
-  virtual void SendEOF(uint32 stream_id) override {}
-  virtual void SendErrorNotFound(uint32 stream_id) override {}
+  size_t ProcessReadInput(const char* data, size_t len) override;
+  size_t ProcessWriteInput(const char* data, size_t len) override;
+  bool MessageFullyRead() const override;
+  void SetStreamID(uint32 stream_id) override {}
+  bool Error() const override;
+  const char* ErrorAsString() const override;
+  void Reset() override;
+  void ResetForNewInterface(int32 server_idx) override {}
+  void ResetForNewConnection() override;
+  void Cleanup() override;
+  int PostAcceptHook() override;
+  void NewStream(uint32 stream_id,
+                 uint32 priority,
+                 const std::string& filename) override {}
+  void SendEOF(uint32 stream_id) override {}
+  void SendErrorNotFound(uint32 stream_id) override {}
   virtual void SendOKResponse(uint32 stream_id, std::string output) {}
-  virtual size_t SendSynStream(uint32 stream_id,
-                               const BalsaHeaders& headers) override;
-  virtual size_t SendSynReply(uint32 stream_id,
-                              const BalsaHeaders& headers) override;
-  virtual void SendDataFrame(uint32 stream_id,
-                             const char* data,
-                             int64 len,
-                             uint32 flags,
-                             bool compress) override {}
-  virtual void set_is_request() override;
+  size_t SendSynStream(uint32 stream_id, const BalsaHeaders& headers) override;
+  size_t SendSynReply(uint32 stream_id, const BalsaHeaders& headers) override;
+  void SendDataFrame(uint32 stream_id,
+                     const char* data,
+                     int64 len,
+                     uint32 flags,
+                     bool compress) override {}
+  void set_is_request() override;
   static std::string forward_ip_header() { return forward_ip_header_; }
   static void set_forward_ip_header(std::string value) {
     forward_ip_header_ = value;
   }
 
  private:
   void SendEOFImpl(uint32 stream_id) {}
   void SendErrorNotFoundImpl(uint32 stream_id) {}
   void SendOKResponseImpl(uint32 stream_id, std::string* output) {}
   size_t SendSynReplyImpl(uint32 stream_id, const BalsaHeaders& headers) {
     return 0;
   }
   size_t SendSynStreamImpl(uint32 stream_id, const BalsaHeaders& headers) {
     return 0;
   }
   void SendDataFrameImpl(uint32 stream_id,
                          const char* data,
                          int64 len,
                          uint32 flags,
                          bool compress) {}
-  virtual void GetOutput() override {}
+  void GetOutput() override {}
 
-  virtual void ProcessBodyInput(const char* input, size_t size) override;
-  virtual void MessageDone() override;
-  virtual void ProcessHeaders(const BalsaHeaders& headers) override;
-  virtual void ProcessBodyData(const char* input, size_t size) override {}
-  virtual void ProcessHeaderInput(const char* input, size_t size) override {}
-  virtual void ProcessTrailerInput(const char* input, size_t size) override {}
-  virtual void ProcessRequestFirstLine(const char* line_input,
-                                       size_t line_length,
-                                       const char* method_input,
-                                       size_t method_length,
-                                       const char* request_uri_input,
-                                       size_t request_uri_length,
-                                       const char* version_input,
-                                       size_t version_length) override {}
-  virtual void ProcessResponseFirstLine(const char* line_input,
-                                        size_t line_length,
-                                        const char* version_input,
-                                        size_t version_length,
-                                        const char* status_input,
-                                        size_t status_length,
-                                        const char* reason_input,
-                                        size_t reason_length) override {}
-  virtual void ProcessChunkLength(size_t chunk_length) override {}
-  virtual void ProcessChunkExtensions(const char* input, size_t size) override {
-  }
-  virtual void HeaderDone() override {}
-  virtual void HandleHeaderError(BalsaFrame* framer) override;
-  virtual void HandleHeaderWarning(BalsaFrame* framer) override {}
-  virtual void HandleChunkingError(BalsaFrame* framer) override;
-  virtual void HandleBodyError(BalsaFrame* framer) override;
+  void ProcessBodyInput(const char* input, size_t size) override;
+  void MessageDone() override;
+  void ProcessHeaders(const BalsaHeaders& headers) override;
+  void ProcessBodyData(const char* input, size_t size) override {}
+  void ProcessHeaderInput(const char* input, size_t size) override {}
+  void ProcessTrailerInput(const char* input, size_t size) override {}
+  void ProcessRequestFirstLine(const char* line_input,
+                               size_t line_length,
+                               const char* method_input,
+                               size_t method_length,
+                               const char* request_uri_input,
+                               size_t request_uri_length,
+                               const char* version_input,
+                               size_t version_length) override {}
+  void ProcessResponseFirstLine(const char* line_input,
+                                size_t line_length,
+                                const char* version_input,
+                                size_t version_length,
+                                const char* status_input,
+                                size_t status_length,
+                                const char* reason_input,
+                                size_t reason_length) override {}
+  void ProcessChunkLength(size_t chunk_length) override {}
+  void ProcessChunkExtensions(const char* input, size_t size) override {}
+  void HeaderDone() override {}
+  void HandleHeaderError(BalsaFrame* framer) override;
+  void HandleHeaderWarning(BalsaFrame* framer) override {}
+  void HandleChunkingError(BalsaFrame* framer) override;
+  void HandleBodyError(BalsaFrame* framer) override;
   void HandleError();
 
   SMConnection* connection_;
   SMInterface* sm_other_interface_;
   EpollServer* epoll_server_;
   FlipAcceptor* acceptor_;
   bool is_request_;
   BalsaFrame* http_framer_;
   BalsaHeaders headers_;
   static std::string forward_ip_header_;
 };
 
 }  // namespace net
 
 #endif  // NET_TOOLS_FLIP_SERVER_STREAMER_INTERFACE_H_