Minor cleanup of SetQuicServerInfo.

net/http/http_transaction.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_HTTP_HTTP_TRANSACTION_H_
 #define NET_HTTP_HTTP_TRANSACTION_H_
 
 #include "net/base/completion_callback.h"
 #include "net/base/load_states.h"
 #include "net/base/net_export.h"
@@ skipping 118 matching lines @@
 
   // Returns the load state for this transaction.
   virtual LoadState GetLoadState() const = 0;
 
   // Returns the upload progress in bytes.  If there is no upload data,
   // zero will be returned.  This does not include the request headers.
   virtual UploadProgress GetUploadProgress() const = 0;
 
   // SetQuicServerInfo sets a object which reads and writes public information
   // about a QUIC server.
-  virtual void SetQuicServerInfo(QuicServerInfo* quic_server_info) {};
+  virtual void SetQuicServerInfo(QuicServerInfo* quic_server_info) = 0;
 
   // Populates all of load timing, except for request start times and receive
   // headers time.
   // |load_timing_info| must have all null times when called.  Returns false and
   // does not modify |load_timing_info| if there's no timing information to
   // provide.
   virtual bool GetLoadTimingInfo(LoadTimingInfo* load_timing_info) const = 0;
 
   // Called when the priority of the parent job changes.
   virtual void SetPriority(RequestPriority priority) = 0;
 
   // Set the WebSocketHandshakeStreamBase::CreateHelper to be used for the
   // request.  Only relevant to WebSocket transactions. Must be called before
   // Start(). Ownership of |create_helper| remains with the caller.
   virtual void SetWebSocketHandshakeStreamCreateHelper(
       WebSocketHandshakeStreamBase::CreateHelper* create_helper) = 0;
 
   // Set the callback to receive notification just before network use.
   virtual void SetBeforeNetworkStartCallback(
       const BeforeNetworkStartCallback& callback) = 0;
 
   // Resumes the transaction after being deferred.
   virtual int ResumeNetworkStart() = 0;
 };
 
 }  // namespace net
 
 #endif  // NET_HTTP_HTTP_TRANSACTION_H_