Implement Turn/Turn first logic for connection selection.

webrtc/p2p/base/p2ptransportchannel.cc

 /*
  *  Copyright 2004 The WebRTC Project Authors. All rights reserved.
  *
  *  Use of this source code is governed by a BSD-style license
  *  that can be found in the LICENSE file in the root of the source
  *  tree. An additional intellectual property rights grant can be found
  *  in the file PATENTS.  All contributing project authors may
  *  be found in the AUTHORS file in the root of the source tree.
  */
 
@@ skipping 180 matching lines @@
 // STRONG_PING_DELAY (480ms) is applied when the best connection is both
 // writable and receiving.
 static const uint32_t STRONG_PING_DELAY = 1000 * PING_PACKET_SIZE / 1000;
 // WEAK_PING_DELAY (48ms) is applied when the best connection is either not
 // writable or not receiving.
 const uint32_t WEAK_PING_DELAY = 1000 * PING_PACKET_SIZE / 10000;
 
 // If the current best connection is both writable and receiving, then we will
 // also try hard to make sure it is pinged at this rate (a little less than
 // 2 * STRONG_PING_DELAY).
-static const uint32_t MAX_CURRENT_STRONG_DELAY = 900;
+const uint32_t MAX_CURRENT_STRONG_DELAY = 900;
 
 static const int MIN_CHECK_RECEIVING_DELAY = 50;  // ms
 
 P2PTransportChannel::P2PTransportChannel(const std::string& transport_name,
                                          int component,
                                          P2PTransport* transport,
                                          PortAllocator* allocator)
     : TransportChannelImpl(transport_name, component),
       transport_(transport),
       allocator_(allocator),
@@ skipping 1219 matching lines @@
   SignalSentPacket(this, sent_packet);
 }
 
 void P2PTransportChannel::OnReadyToSend(Connection* connection) {
   if (connection == best_connection_ && writable()) {
     SignalReadyToSend(this);
   }
 }
 
 }  // namespace cricket