Disable RampUpTest.UpDownUpTransportSequenceNumberPacketLoss on Linux due to flakiness.

call/rampup_tests.cc

 /*
  *  Copyright (c) 2013 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 566 matching lines @@
 TEST_F(RampUpTest, UpDownUpTransportSequenceNumberRtx) {
   std::vector<int> loss_rates = {0, 0, 0, 0};
   RampUpDownUpTester test(3, 0, 0, kStartBitrateBps,
                           RtpExtension::kTransportSequenceNumberUri, true,
                           false, loss_rates, true);
   RunBaseTest(&test);
 }
 
 // TODO(holmer): Tests which don't report perf stats should be moved to a
 // different executable since they per definition are not perf tests.
-TEST_F(RampUpTest, UpDownUpTransportSequenceNumberPacketLoss) {
+// Crashes on Linux only, see webrtc:7919.
+#if defined(WEBRTC_LINUX)
+#define MAYBE_UpDownUpTransportSequenceNumberPacketLoss \
+    DISABLED_UpDownUpTransportSequenceNumberPacketLoss
+#else
+#define MAYBE_UpDownUpTransportSequenceNumberPacketLoss \
+    UpDownUpTransportSequenceNumberPacketLoss
+#endif
+TEST_F(RampUpTest, MAYBE_UpDownUpTransportSequenceNumberPacketLoss) {
   std::vector<int> loss_rates = {20, 0, 0, 0};
   RampUpDownUpTester test(1, 0, 1, kStartBitrateBps,
                           RtpExtension::kTransportSequenceNumberUri, true,
                           false, loss_rates, false);
   RunBaseTest(&test);
 }
 
 TEST_F(RampUpTest, UpDownUpAudioVideoTransportSequenceNumberRtx) {
   std::vector<int> loss_rates = {0, 0, 0, 0};
   RampUpDownUpTester test(3, 1, 0, kStartBitrateBps,
@@ skipping 46 matching lines @@
   RunBaseTest(&test);
 }
 
 TEST_F(RampUpTest, AudioTransportSequenceNumber) {
   RampUpTester test(0, 1, 0, 300000, 10000,
                     RtpExtension::kTransportSequenceNumberUri, false, false,
                     false);
   RunBaseTest(&test);
 }
 }  // namespace webrtc