diff --git a/media/base/media_channel_impl.cc b/media/base/media_channel_impl.cc
index e7e84c781c..1c08382969 100644
--- a/media/base/media_channel_impl.cc
+++ b/media/base/media_channel_impl.cc
@@ -71,18 +71,6 @@ int MediaChannelUtil::GetRtpSendTimeExtnId() const {
   return -1;
 }
 
-void MediaChannelUtil::SetFrameEncryptor(
-    uint32_t ssrc,
-    rtc::scoped_refptr<FrameEncryptorInterface> frame_encryptor) {
-  // Placeholder should be pure virtual once internal supports it.
-}
-
-void MediaChannelUtil::SetFrameDecryptor(
-    uint32_t ssrc,
-    rtc::scoped_refptr<FrameDecryptorInterface> frame_decryptor) {
-  // Placeholder should be pure virtual once internal supports it.
-}
-
 bool MediaChannelUtil::SendPacket(rtc::CopyOnWriteBuffer* packet,
                                   const rtc::PacketOptions& options) {
   return transport_.DoSendPacket(packet, false, options);
@@ -115,14 +103,6 @@ bool MediaChannelUtil::HasNetworkInterface() const {
   return transport_.HasNetworkInterface();
 }
 
-void MediaChannelUtil::SetEncoderToPacketizerFrameTransformer(
-    uint32_t ssrc,
-    rtc::scoped_refptr<FrameTransformerInterface> frame_transformer) {}
-
-void MediaChannelUtil::SetDepacketizerToDecoderFrameTransformer(
-    uint32_t ssrc,
-    rtc::scoped_refptr<FrameTransformerInterface> frame_transformer) {}
-
 bool MediaChannelUtil::DscpEnabled() const {
   return transport_.DscpEnabled();
 }
diff --git a/media/base/media_channel_impl.h b/media/base/media_channel_impl.h
index f8c8174efa..eda47af568 100644
--- a/media/base/media_channel_impl.h
+++ b/media/base/media_channel_impl.h
@@ -106,20 +106,6 @@ class MediaChannelUtil {
   // Must be called on the network thread.
   bool HasNetworkInterface() const;
 
-  void SetFrameEncryptor(
-      uint32_t ssrc,
-      rtc::scoped_refptr<webrtc::FrameEncryptorInterface> frame_encryptor);
-  void SetFrameDecryptor(
-      uint32_t ssrc,
-      rtc::scoped_refptr<webrtc::FrameDecryptorInterface> frame_decryptor);
-
-  void SetEncoderToPacketizerFrameTransformer(
-      uint32_t ssrc,
-      rtc::scoped_refptr<webrtc::FrameTransformerInterface> frame_transformer);
-  void SetDepacketizerToDecoderFrameTransformer(
-      uint32_t ssrc,
-      rtc::scoped_refptr<webrtc::FrameTransformerInterface> frame_transformer);
-
  protected:
   bool DscpEnabled() const;