Fix a flaky turnport test failure

webrtc/p2p/base/turnport_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.
  */
 #if defined(WEBRTC_POSIX)
@@ skipping 691 matching lines @@
   turn_refresh_success_ = false;
   // This sends out the first RefreshRequest with correct credentials.
   // When this succeeds, it will schedule a new RefreshRequest with the bad
   // credential.
   turn_port_->FlushRequests(cricket::TURN_REFRESH_REQUEST);
   EXPECT_TRUE_WAIT(turn_refresh_success_, kTimeout);
   // Flush it again, it will receive a bad response.
   turn_port_->FlushRequests(cricket::TURN_REFRESH_REQUEST);
   EXPECT_TRUE_WAIT(!turn_refresh_success_, kTimeout);
   EXPECT_TRUE_WAIT(!turn_port_->connected(), kTimeout);
-  EXPECT_TRUE(turn_port_->connections().empty());
+  EXPECT_TRUE_WAIT(turn_port_->connections().empty(), kTimeout);
   EXPECT_FALSE(turn_port_->HasRequests());
 }
 
 // Test that CreateConnection will return null if port becomes disconnected.
 TEST_F(TurnPortTest, TestCreateConnectionWhenSocketClosed) {
   turn_server_.AddInternalSocket(kTurnTcpIntAddr, cricket::PROTO_TCP);
   CreateTurnPort(kTurnUsername, kTurnPassword, kTurnTcpProtoAddr);
   PrepareTurnAndUdpPorts();
   // Create a connection.
   Connection* conn1 = turn_port_->CreateConnection(udp_port_->Candidates()[0],
@@ skipping 268 matching lines @@
   turn_port_->PrepareAddress();
   ASSERT_TRUE_WAIT(turn_error_, kResolverTimeout);
   EXPECT_TRUE(turn_port_->Candidates().empty());
   turn_port_.reset();
   rtc::Thread::Current()->Post(this, MSG_TESTFINISH);
   // Waiting for above message to be processed.
   ASSERT_TRUE_WAIT(test_finish_, kTimeout);
   EXPECT_EQ(last_fd_count, GetFDCount());
 }
 #endif