Enable probing with repeated payload packets by default.

webrtc/modules/pacing/paced_sender_unittest.cc

 /*
  *  Copyright (c) 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 725 matching lines @@
   while (callback.packets_sent() < kNumPackets) {
     int time_until_process = send_bucket_->TimeUntilNextProcess();
     if (time_until_process <= 0) {
       send_bucket_->Process();
     } else {
       clock_.AdvanceTimeMilliseconds(time_until_process);
     }
   }
 }
 
-class ProbingPacedSender : public PacedSender {
- public:
-  ProbingPacedSender(Clock* clock,
-                     Callback* callback,
-                     int bitrate_kbps,
-                     int max_bitrate_kbps,
-                     int min_bitrate_kbps)
-      : PacedSender(clock,
-                    callback,
-                    bitrate_kbps,
-                    max_bitrate_kbps,
-                    min_bitrate_kbps) {}
-
-  bool ProbingExperimentIsEnabled() const override { return true; }
-};
-
 TEST_F(PacedSenderTest, ProbingWithTooSmallInitialFrame) {
   const int kNumPackets = 11;
   const int kNumDeltas = kNumPackets - 1;
   const size_t kPacketSize = 1200;
   const int kInitialBitrateKbps = 300;
   uint32_t ssrc = 12346;
   uint16_t sequence_number = 1234;
   const int expected_deltas[kNumDeltas] = {10, 10, 10, 10, 10, 5, 5, 5, 5, 5};
   std::list<int> expected_deltas_list(expected_deltas,
                                       expected_deltas + kNumPackets - 1);
   PacedSenderProbing callback(expected_deltas_list, &clock_);
-  send_bucket_.reset(
-      new ProbingPacedSender(&clock_, &callback, kInitialBitrateKbps,
-                             kPaceMultiplier * kInitialBitrateKbps, 0));
+  send_bucket_.reset(new PacedSender(&clock_, &callback, kInitialBitrateKbps,
+                                     kPaceMultiplier * kInitialBitrateKbps, 0));
 
   for (int i = 0; i < kNumPackets - 5; ++i) {
     EXPECT_FALSE(send_bucket_->SendPacket(
         PacedSender::kNormalPriority, ssrc, sequence_number++,
         clock_.TimeInMilliseconds(), kPacketSize, false));
   }
   while (callback.packets_sent() < kNumPackets) {
     int time_until_process = send_bucket_->TimeUntilNextProcess();
     if (time_until_process <= 0) {
       send_bucket_->Process();
@@ skipping 77 matching lines @@
       PacedSender::kHighPriority, ssrc, sequence_number++,
       clock_.TimeInMilliseconds(), kPacketSize, false));
 
   // Don't send padding if queue is non-empty, even if padding budget > 0.
   EXPECT_CALL(callback_, TimeToSendPadding(_)).Times(0);
   send_bucket_->Process();
 }
 
 }  // namespace test
 }  // namespace webrtc