Implement a 15 connection per proxy server limit.

net/socket/tcp_client_socket_pool.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_SOCKET_TCP_CLIENT_SOCKET_POOL_H_
 #define NET_SOCKET_TCP_CLIENT_SOCKET_POOL_H_
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/ref_counted.h"
 #include "base/scoped_ptr.h"
 #include "base/time.h"
 #include "base/timer.h"
+#include "net/base/host_port_pair.h"
 #include "net/base/host_resolver.h"
 #include "net/socket/client_socket_pool_base.h"
 #include "net/socket/client_socket_pool.h"
 
 namespace net {
 
 class ClientSocketFactory;
 
 class TCPSocketParams {
  public:
+  TCPSocketParams(const HostPortPair& host_port_pair, RequestPriority priority,
+                  const GURL& referrer, bool disable_resolver_cache)
+      :  destination_(host_port_pair.host, host_port_pair.port) {
+    Initialize(priority, referrer, disable_resolver_cache);
+  }
+
+  // TODO(willchan): Update all unittests so we don't need this.
   TCPSocketParams(const std::string& host, int port, RequestPriority priority,
                   const GURL& referrer, bool disable_resolver_cache)
       :  destination_(host, port) {
+    Initialize(priority, referrer, disable_resolver_cache);
+  }
+
+  HostResolver::RequestInfo destination() const { return destination_; }
+
+ private:
+  void Initialize(RequestPriority priority, const GURL& referrer,
+                  bool disable_resolver_cache) {
     // The referrer is used by the DNS prefetch system to correlate resolutions
     // with the page that triggered them. It doesn't impact the actual addresses
     // that we resolve to.
     destination_.set_referrer(referrer);
     destination_.set_priority(priority);
     if (disable_resolver_cache)
       destination_.set_allow_cached_response(false);
   }
 
-  HostResolver::RequestInfo destination() const { return destination_; }
-
- private:
   HostResolver::RequestInfo destination_;
 };
 
 // TCPConnectJob handles the host resolution necessary for socket creation
 // and the tcp connect.
 class TCPConnectJob : public ConnectJob {
  public:
   TCPConnectJob(const std::string& group_name,
                 const TCPSocketParams& params,
                 base::TimeDelta timeout_duration,
@@ skipping 124 matching lines @@
   PoolBase base_;
 
   DISALLOW_COPY_AND_ASSIGN(TCPClientSocketPool);
 };
 
 REGISTER_SOCKET_PARAMS_FOR_POOL(TCPClientSocketPool, TCPSocketParams)
 
 }  // namespace net
 
 #endif  // NET_SOCKET_TCP_CLIENT_SOCKET_POOL_H_