Add the "virtual" keyword on method overrides that are missing it.

net/http/http_stream_factory.h

 // Copyright (c) 2010 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_STREAM_FACTORY_H_
 #define NET_HTTP_HTTP_STREAM_FACTORY_H_
 
 #include <map>
 #include <set>
 #include <string>
@@ skipping 30 matching lines @@
                                        const BoundNetLog& net_log);
 
   virtual int PreconnectStreams(int num_streams,
                                 const HttpRequestInfo* info,
                                 SSLConfig* ssl_config,
                                 ProxyInfo* proxy_info,
                                 HttpNetworkSession* session,
                                 const BoundNetLog& net_log,
                                 CompletionCallback* callback);
 
-  void AddTLSIntolerantServer(const GURL& url);
-  bool IsTLSIntolerantServer(const GURL& url);
+  virtual void AddTLSIntolerantServer(const GURL& url);
+  virtual bool IsTLSIntolerantServer(const GURL& url);
 
   virtual void ProcessAlternateProtocol(
       HttpAlternateProtocols* alternate_protocols,
       const std::string& alternate_protocol_str,
       const HostPortPair& http_host_port_pair);
 
   virtual GURL ApplyHostMappingRules(const GURL& url, HostPortPair* endpoint);
 
   // HttpStreamRequest::PreconnectDelegate API
   virtual void OnPreconnectsComplete(HttpStreamRequest* request, int result);
@@ skipping 57 matching lines @@
   static bool force_spdy_always_;
   static bool ignore_certificate_errors_;
 
   DISALLOW_COPY_AND_ASSIGN(HttpStreamFactory);
 };
 
 }  // namespace net
 
 #endif  // NET_HTTP_HTTP_STREAM_FACTORY_H_