Add option to simulate alternate protocol always being present....

net/http/http_alternate_protocols.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.
 //
 // HttpAlternateProtocols is an in-memory data structure used for keeping track
 // of which HTTP HostPortPairs have an alternate protocol that can be used
 // instead of HTTP on a different port.
 
 #ifndef NET_HTTP_HTTP_ALTERNATE_PROTOCOLS_H_
 #define NET_HTTP_HTTP_ALTERNATE_PROTOCOLS_H_
@@ skipping 45 matching lines @@
   // SetAlternateProtocolFor() will ignore the request if the alternate protocol
   // has already been marked broken via MarkBrokenAlternateProtocolFor().
   void SetAlternateProtocolFor(const HostPortPair& http_host_port_pair,
                                uint16 alternate_port,
                                Protocol alternate_protocol);
 
   // Marks the alternate protocol as broken.  Once marked broken, any further
   // attempts to set the alternate protocol for |http_host_port_pair| will fail.
   void MarkBrokenAlternateProtocolFor(const HostPortPair& http_host_port_pair);
 
+  // Debugging to simulate presence of an AlternateProtocol.
+  // If we don't have an alternate protocol in the map for any given host/port
+  // pair, force this ProtocolPortPair.
+  static void ForceAlternateProtocol(const PortProtocolPair& pair);
+  static void DisableForcedAlternateProtocol();
+
  private:
   typedef std::map<HostPortPair, PortProtocolPair> ProtocolMap;
 
   ProtocolMap protocol_map_;
 
+  // The forced alternate protocol.  If not-null, there is a protocol being
+  // forced.
+  static PortProtocolPair* forced_alternate_protocol_;
+
   DISALLOW_COPY_AND_ASSIGN(HttpAlternateProtocols);
 };
 
 }  // namespace net
 
 #endif  // NET_HTTP_HTTP_ALTERNATE_PROTOCOLS_H_