diff --git a/webrtc/modules/bitrate_controller/send_side_bandwidth_estimation.cc b/webrtc/modules/bitrate_controller/send_side_bandwidth_estimation.cc
index 4999df172..7d9d8d60a 100644
--- a/webrtc/modules/bitrate_controller/send_side_bandwidth_estimation.cc
+++ b/webrtc/modules/bitrate_controller/send_side_bandwidth_estimation.cc
@@ -188,14 +188,12 @@ void SendSideBandwidthEstimation::UpdateUmaStats(int64_t now_ms,
 void SendSideBandwidthEstimation::UpdateEstimate(int64_t now_ms) {
   // We trust the REMB during the first 2 seconds if we haven't had any
   // packet loss reported, to allow startup bitrate probing.
-  if (ProbingExperimentIsEnabled()) {
-    if (last_fraction_loss_ == 0 && IsInStartPhase(now_ms) &&
-        bwe_incoming_ > bitrate_) {
-      bitrate_ = CapBitrateToThresholds(bwe_incoming_);
-      min_bitrate_history_.clear();
-      min_bitrate_history_.push_back(std::make_pair(now_ms, bitrate_));
-      return;
-    }
+  if (last_fraction_loss_ == 0 && IsInStartPhase(now_ms) &&
+      bwe_incoming_ > bitrate_) {
+    bitrate_ = CapBitrateToThresholds(bwe_incoming_);
+    min_bitrate_history_.clear();
+    min_bitrate_history_.push_back(std::make_pair(now_ms, bitrate_));
+    return;
   }
   UpdateMinHistory(now_ms);
   // Only start updating bitrate when receiving receiver blocks.
@@ -286,9 +284,4 @@ uint32_t SendSideBandwidthEstimation::CapBitrateToThresholds(uint32_t bitrate) {
   }
   return bitrate;
 }
-
-bool SendSideBandwidthEstimation::ProbingExperimentIsEnabled() const {
-  return webrtc::field_trial::FindFullName("WebRTC-BitrateProbing") ==
-         "Enabled";
-}
 }  // namespace webrtc
diff --git a/webrtc/modules/bitrate_controller/send_side_bandwidth_estimation.h b/webrtc/modules/bitrate_controller/send_side_bandwidth_estimation.h
index 427909b3e..b544d5f07 100644
--- a/webrtc/modules/bitrate_controller/send_side_bandwidth_estimation.h
+++ b/webrtc/modules/bitrate_controller/send_side_bandwidth_estimation.h
@@ -42,9 +42,6 @@ class SendSideBandwidthEstimation {
   void SetMinMaxBitrate(uint32_t min_bitrate, uint32_t max_bitrate);
   void SetMinBitrate(uint32_t min_bitrate);
 
- protected:
-  virtual bool ProbingExperimentIsEnabled() const;
-
  private:
   enum UmaState { kNoUpdate, kFirstDone, kDone };
 
diff --git a/webrtc/modules/bitrate_controller/send_side_bandwidth_estimation_unittest.cc b/webrtc/modules/bitrate_controller/send_side_bandwidth_estimation_unittest.cc
index eed2d9ee8..5171049f0 100644
--- a/webrtc/modules/bitrate_controller/send_side_bandwidth_estimation_unittest.cc
+++ b/webrtc/modules/bitrate_controller/send_side_bandwidth_estimation_unittest.cc
@@ -16,21 +16,8 @@
 
 namespace webrtc {
 
-class TestBandwidthEstimation : public SendSideBandwidthEstimation {
- public:
-  explicit TestBandwidthEstimation(bool in_experiment)
-      : in_experiment_(in_experiment) {}
-
-  virtual bool ProbingExperimentIsEnabled() const OVERRIDE {
-    return in_experiment_;
-  }
-
- private:
-  bool in_experiment_;
-};
-
 TEST(SendSideBweTest, InitialRembWithProbing) {
-  TestBandwidthEstimation bwe(true);
+  SendSideBandwidthEstimation bwe;
   bwe.SetMinMaxBitrate(100000, 1500000);
   bwe.SetSendBitrate(200000);
 
@@ -57,24 +44,4 @@ TEST(SendSideBweTest, InitialRembWithProbing) {
   bwe.CurrentEstimate(&bitrate, &fraction_loss, &rtt);
   EXPECT_EQ(kRemb, bitrate);
 }
-
-TEST(SendSideBweTest, InitialRembWithoutProbing) {
-  TestBandwidthEstimation bwe(false);
-  bwe.SetMinMaxBitrate(100000, 1500000);
-  const uint32_t kStartBitrate = 200000;
-  bwe.SetSendBitrate(kStartBitrate);
-
-  int64_t now_ms = 0;
-  bwe.UpdateReceiverBlock(0, 50, 1, now_ms);
-
-  // Initial REMB doesn't apply immediately.
-  const uint32_t kRemb = 1000000u;
-  bwe.UpdateReceiverEstimate(kRemb);
-  bwe.UpdateEstimate(now_ms);
-  uint32_t bitrate;
-  uint8_t fraction_loss;
-  int64_t rtt;
-  bwe.CurrentEstimate(&bitrate, &fraction_loss, &rtt);
-  EXPECT_EQ(kStartBitrate, bitrate);
-}
 }  // namespace webrtc