Add a flag to filter out high-cost networks.

webrtc/api/peerconnectioninterface_unittest.cc

 /*
  *  Copyright 2012 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 1032 matching lines @@
 // in the RTCConfiguration.
 TEST_F(PeerConnectionInterfaceTest, CreatePeerConnectionWithPooledCandidates) {
   PeerConnectionInterface::RTCConfiguration config;
   PeerConnectionInterface::IceServer server;
   server.uri = kStunAddressOnly;
   config.servers.push_back(server);
   config.type = PeerConnectionInterface::kRelay;
   config.disable_ipv6 = true;
   config.tcp_candidate_policy =
       PeerConnectionInterface::kTcpCandidatePolicyDisabled;
+  config.candidate_network_policy =
+      PeerConnectionInterface::kCandidateNetworkPolicyLowCost;
   config.ice_candidate_pool_size = 1;
   CreatePeerConnection(config, nullptr);
 
   const cricket::FakePortAllocatorSession* session =
       static_cast<const cricket::FakePortAllocatorSession*>(
           port_allocator_->GetPooledSession());
   ASSERT_NE(nullptr, session);
   EXPECT_EQ(1UL, session->stun_servers().size());
   EXPECT_EQ(0U, session->flags() & cricket::PORTALLOCATOR_ENABLE_IPV6);
   EXPECT_LT(0U, session->flags() & cricket::PORTALLOCATOR_DISABLE_TCP);
+  EXPECT_LT(0U,
+            session->flags() & cricket::PORTALLOCATOR_DISABLE_COSTLY_NETWORKS);
 }
 
 TEST_F(PeerConnectionInterfaceTest, AddStreams) {
   CreatePeerConnection();
   AddVideoStream(kStreamLabel1);
   AddVoiceStream(kStreamLabel2);
   ASSERT_EQ(2u, pc_->local_streams()->count());
 
   // Test we can add multiple local streams to one peerconnection.
   scoped_refptr<MediaStreamInterface> stream(
@@ skipping 1733 matching lines @@
   FakeConstraints updated_answer_c;
   answer_c.SetMandatoryReceiveAudio(false);
   answer_c.SetMandatoryReceiveVideo(false);
 
   cricket::MediaSessionOptions updated_answer_options;
   EXPECT_TRUE(
       ParseConstraintsForAnswer(&updated_answer_c, &updated_answer_options));
   EXPECT_TRUE(updated_answer_options.has_audio());
   EXPECT_TRUE(updated_answer_options.has_video());
 }