- Clean up unused voice engine DTMF code.

webrtc/voice_engine/channel_proxy.cc

Index: webrtc/voice_engine/channel_proxy.cc
diff --git a/webrtc/voice_engine/channel_proxy.cc b/webrtc/voice_engine/channel_proxy.cc
index 3beaf9b2942c784acab4942fa5d7d7cb7e461b38..d501e1a4d300c7534acfb89cf080fe613b10acc1 100644
--- a/webrtc/voice_engine/channel_proxy.cc
+++ b/webrtc/voice_engine/channel_proxy.cc
@@ -143,16 +143,16 @@ uint32_t ChannelProxy::GetDelayEstimate() const {
   return channel()->GetDelayEstimate();
 }
 
-bool ChannelProxy::SetSendTelephoneEventPayloadType(int payload_type) {
+bool ChannelProxy::SetSendTelephoneEventPayloadType(uint8_t payload_type) {
   RTC_DCHECK(thread_checker_.CalledOnValidThread());
   return channel()->SetSendTelephoneEventPayloadType(payload_type) == 0;
 }
 
 bool ChannelProxy::SendTelephoneEventOutband(uint8_t event,
-                                             uint32_t duration_ms) {
+                                             uint16_t duration_ms) {
   RTC_DCHECK(thread_checker_.CalledOnValidThread());
   return
-      channel()->SendTelephoneEventOutband(event, duration_ms, 10, false) == 0;
+      channel()->SendTelephoneEventOutband(event, duration_ms) == 0;
 }
 
 void ChannelProxy::SetSink(std::unique_ptr<AudioSinkInterface> sink) {