Fix issue with RTT computations in simulator.

R=magalhaesc@google.com

Review URL: https://webrtc-codereview.appspot.com/56429005

Cr-Commit-Position: refs/heads/master@{#9343}
diff --git a/webrtc/modules/remote_bitrate_estimator/test/bwe_test_framework.cc b/webrtc/modules/remote_bitrate_estimator/test/bwe_test_framework.cc
index 4beb34d..ad1f5fd 100644
--- a/webrtc/modules/remote_bitrate_estimator/test/bwe_test_framework.cc
+++ b/webrtc/modules/remote_bitrate_estimator/test/bwe_test_framework.cc
@@ -676,6 +676,7 @@
           new MediaPacket(flow_id_, send_time_us, size, prototype_header_);
       new_packets.push_back(new_packet);
       new_packet->SetAbsSendTimeMs(next_frame_ms_);
+      new_packet->set_sender_timestamp_us(send_time_us);
       payload_size -= size;
     }
 
diff --git a/webrtc/modules/remote_bitrate_estimator/test/estimators/send_side.cc b/webrtc/modules/remote_bitrate_estimator/test/estimators/send_side.cc
index 5111e92..f7074d2 100644
--- a/webrtc/modules/remote_bitrate_estimator/test/estimators/send_side.cc
+++ b/webrtc/modules/remote_bitrate_estimator/test/estimators/send_side.cc
@@ -17,6 +17,8 @@
 namespace testing {
 namespace bwe {
 
+const int kFeedbackIntervalMs = 50;
+
 FullBweSender::FullBweSender(int kbps, BitrateObserver* observer, Clock* clock)
     : bitrate_controller_(
           BitrateController::CreateBitrateController(clock, observer)),
@@ -38,7 +40,7 @@
 }
 
 int FullBweSender::GetFeedbackIntervalMs() const {
-  return 100;
+  return kFeedbackIntervalMs;
 }
 
 void FullBweSender::GiveFeedback(const FeedbackPacket& feedback) {
@@ -128,7 +130,7 @@
 }
 
 FeedbackPacket* SendSideBweReceiver::GetFeedback(int64_t now_ms) {
-  if (now_ms - last_feedback_ms_ < 100)
+  if (now_ms - last_feedback_ms_ < kFeedbackIntervalMs)
     return NULL;
   last_feedback_ms_ = now_ms;
   int64_t corrected_send_time_ms =
diff --git a/webrtc/modules/remote_bitrate_estimator/test/packet_sender.cc b/webrtc/modules/remote_bitrate_estimator/test/packet_sender.cc
index c333446..eeaec86 100644
--- a/webrtc/modules/remote_bitrate_estimator/test/packet_sender.cc
+++ b/webrtc/modules/remote_bitrate_estimator/test/packet_sender.cc
@@ -40,12 +40,6 @@
   return fb_packets;
 }
 
-void PacketSender::SetSenderTimestamps(Packets* in_out) {
-  for (auto it = in_out->begin(); it != in_out->end(); ++it) {
-    (*it)->set_sender_timestamp_us(clock_.TimeInMilliseconds() * 1000);
-  }
-}
-
 VideoSender::VideoSender(PacketProcessorListener* listener,
                          VideoSource* source,
                          BandwidthEstimatorType estimator_type)
@@ -65,7 +59,6 @@
   std::list<FeedbackPacket*> feedbacks = GetFeedbackPackets(
       in_out, clock_.TimeInMilliseconds() + time_ms, source_->flow_id());
   ProcessFeedbackAndGeneratePackets(time_ms, &feedbacks, in_out);
-  SetSenderTimestamps(in_out);
 }
 
 void VideoSender::ProcessFeedbackAndGeneratePackets(
@@ -192,7 +185,6 @@
     }
   } while (clock_.TimeInMilliseconds() < end_time_ms);
   QueuePackets(in_out, end_time_ms * 1000);
-  SetSenderTimestamps(in_out);
 }
 
 int64_t PacedVideoSender::TimeUntilNextProcess(
@@ -248,6 +240,7 @@
       assert(pace_out_time_ms >= (media_packet->send_time_us() + 500) / 1000);
       media_packet->SetAbsSendTimeMs(pace_out_time_ms);
       media_packet->set_send_time_us(1000 * pace_out_time_ms);
+      media_packet->set_sender_timestamp_us(1000 * pace_out_time_ms);
       queue_.push_back(media_packet);
       pacer_queue_.erase(it);
       return true;
@@ -301,7 +294,6 @@
   clock_.AdvanceTimeMilliseconds(time_ms -
                                  (clock_.TimeInMilliseconds() - start_time_ms));
   SendPackets(in_out);
-  SetSenderTimestamps(in_out);
 }
 
 void TcpSender::SendPackets(Packets* in_out) {
@@ -371,6 +363,8 @@
     generated.push_back(new MediaPacket(*flow_ids().begin(),
                                         1000 * clock_.TimeInMilliseconds(),
                                         1200, next_sequence_number_++));
+    generated.back()->set_sender_timestamp_us(
+        1000 * clock_.TimeInMilliseconds());
   }
   return generated;
 }