diff --git a/common_types.h b/common_types.h
index 2eb2564951..58c0a93d88 100644
--- a/common_types.h
+++ b/common_types.h
@@ -16,16 +16,6 @@
 
 namespace webrtc {
 
-// Callback, used to notify an observer whenever new rates have been estimated.
-class BitrateStatisticsObserver {
- public:
-  virtual ~BitrateStatisticsObserver() {}
-
-  virtual void Notify(uint32_t total_bitrate_bps,
-                      uint32_t retransmit_bitrate_bps,
-                      uint32_t ssrc) = 0;
-};
-
 struct FrameCounts {
   FrameCounts() : key_frames(0), delta_frames(0) {}
   int key_frames;
@@ -40,27 +30,6 @@ class FrameCountObserver {
                                  uint32_t ssrc) = 0;
 };
 
-// Callback, used to notify an observer whenever the send-side delay is updated.
-class SendSideDelayObserver {
- public:
-  virtual ~SendSideDelayObserver() {}
-  virtual void SendSideDelayUpdated(int avg_delay_ms,
-                                    int max_delay_ms,
-                                    uint32_t ssrc) = 0;
-};
-
-// Callback, used to notify an observer whenever a packet is sent to the
-// transport.
-// TODO(asapersson): This class will remove the need for SendSideDelayObserver.
-// Remove SendSideDelayObserver once possible.
-class SendPacketObserver {
- public:
-  virtual ~SendPacketObserver() {}
-  virtual void OnSendPacket(uint16_t packet_id,
-                            int64_t capture_time_ms,
-                            uint32_t ssrc) = 0;
-};
-
 // Callback, used to notify an observer when the overhead per packet
 // has changed.
 class OverheadObserver {
diff --git a/modules/rtp_rtcp/include/rtp_rtcp_defines.h b/modules/rtp_rtcp/include/rtp_rtcp_defines.h
index 2828575d01..d984575109 100644
--- a/modules/rtp_rtcp/include/rtp_rtcp_defines.h
+++ b/modules/rtp_rtcp/include/rtp_rtcp_defines.h
@@ -516,5 +516,36 @@ class RtcpAckObserver {
   virtual ~RtcpAckObserver() = default;
 };
 
+// Callback, used to notify an observer whenever new rates have been estimated.
+class BitrateStatisticsObserver {
+ public:
+  virtual ~BitrateStatisticsObserver() {}
+
+  virtual void Notify(uint32_t total_bitrate_bps,
+                      uint32_t retransmit_bitrate_bps,
+                      uint32_t ssrc) = 0;
+};
+
+// Callback, used to notify an observer whenever the send-side delay is updated.
+class SendSideDelayObserver {
+ public:
+  virtual ~SendSideDelayObserver() {}
+  virtual void SendSideDelayUpdated(int avg_delay_ms,
+                                    int max_delay_ms,
+                                    uint32_t ssrc) = 0;
+};
+
+// Callback, used to notify an observer whenever a packet is sent to the
+// transport.
+// TODO(asapersson): This class will remove the need for SendSideDelayObserver.
+// Remove SendSideDelayObserver once possible.
+class SendPacketObserver {
+ public:
+  virtual ~SendPacketObserver() {}
+  virtual void OnSendPacket(uint16_t packet_id,
+                            int64_t capture_time_ms,
+                            uint32_t ssrc) = 0;
+};
+
 }  // namespace webrtc
 #endif  // MODULES_RTP_RTCP_INCLUDE_RTP_RTCP_DEFINES_H_