Completely disable use of bind() with pseudo-random port selection on Windows.

net/quic/quic_stream_factory.cc

 // Copyright (c) 2012 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.
 
 #include "net/quic/quic_stream_factory.h"
 
 #include <set>
 
 #include "base/logging.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 259 matching lines @@
 }
 
 QuicStreamFactory::QuicStreamFactory(
     HostResolver* host_resolver,
     ClientSocketFactory* client_socket_factory,
     base::WeakPtr<HttpServerProperties> http_server_properties,
     QuicCryptoClientStreamFactory* quic_crypto_client_stream_factory,
     QuicRandom* random_generator,
     QuicClock* clock,
     size_t max_packet_length,
-    const QuicVersionVector& supported_versions)
+    const QuicVersionVector& supported_versions,
+    bool enable_port_selection)
     : require_confirmation_(true),
       host_resolver_(host_resolver),
       client_socket_factory_(client_socket_factory),
       http_server_properties_(http_server_properties),
       quic_crypto_client_stream_factory_(quic_crypto_client_stream_factory),
       random_generator_(random_generator),
       clock_(clock),
       max_packet_length_(max_packet_length),
       supported_versions_(supported_versions),
+      enable_port_selection_(enable_port_selection),
       port_seed_(random_generator_->RandUint64()),
       weak_factory_(this) {
   config_.SetDefaults();
   config_.set_idle_connection_state_lifetime(
       QuicTime::Delta::FromSeconds(30),
       QuicTime::Delta::FromSeconds(30));
 
   cannoncial_suffixes_.push_back(string(".c.youtube.com"));
   cannoncial_suffixes_.push_back(string(".googlevideo.com"));
 }
@@ skipping 207 matching lines @@
     const HostPortProxyPair& host_port_proxy_pair,
     bool is_https,
     CertVerifier* cert_verifier,
     const AddressList& address_list,
     const BoundNetLog& net_log,
     QuicClientSession** session) {
   QuicGuid guid = random_generator_->RandUint64();
   IPEndPoint addr = *address_list.begin();
   scoped_refptr<PortSuggester> port_suggester =
       new PortSuggester(host_port_proxy_pair.first, port_seed_);
+  DatagramSocket::BindType bind_type = enable_port_selection_ ?
+      DatagramSocket::RANDOM_BIND :  // Use our callback.
+      DatagramSocket::DEFAULT_BIND;  // Use OS to randomize.
   scoped_ptr<DatagramClientSocket> socket(
       client_socket_factory_->CreateDatagramClientSocket(
-          DatagramSocket::RANDOM_BIND,
+          bind_type,
           base::Bind(&PortSuggester::SuggestPort, port_suggester),
           net_log.net_log(), net_log.source()));
   int rv = socket->Connect(addr);
   if (rv != OK)
     return rv;
   UMA_HISTOGRAM_COUNTS("Net.QuicEphemeralPortsSuggested",
                        port_suggester->call_count());
-  DCHECK_LE(1u, port_suggester->call_count());
+  if (enable_port_selection_) {
+    DCHECK_LE(1u, port_suggester->call_count());
+  } else {
+    DCHECK_EQ(0u, port_suggester->call_count());
+  }
 
   // We should adaptively set this buffer size, but for now, we'll use a size
   // that is more than large enough for a full receive window, and yet
   // does not consume "too much" memory.  If we see bursty packet loss, we may
   // revisit this setting and test for its impact.
   const int32 kSocketBufferSize(TcpReceiver::kReceiveWindowTCP);
   socket->SetReceiveBufferSize(kSocketBufferSize);
   // Set a buffer large enough to contain the initial CWND's worth of packet
   // to work around the problem with CHLO packets being sent out with the
   // wrong encryption level, when the send buffer is full.
@@ skipping 97 matching lines @@
   // Copy the CachedState for the canonical server from canonical_crypto_config
   // as the initial CachedState for the server_hostname in crypto_config.
   crypto_config->InitializeFrom(server_hostname,
                                 canonical_host_port_proxy_pair.first.host(),
                                 canonical_crypto_config);
   // Update canonical version to point at the "most recent" crypto_config.
   canonical_hostname_to_origin_map_[canonical_host_port] = host_port_proxy_pair;
 }
 
 }  // namespace net