Define Stream base classes

webrtc/video/video_send_stream.cc

Index: webrtc/video/video_send_stream.cc
diff --git a/webrtc/video/video_send_stream.cc b/webrtc/video/video_send_stream.cc
index 0b59c8bba283ba77b96c811aaba7385f340b12ba..c0d73490f89bc21bdcfcc51630ce862e6e1f688e 100644
--- a/webrtc/video/video_send_stream.cc
+++ b/webrtc/video/video_send_stream.cc
@@ -436,14 +436,14 @@ std::map<uint32_t, RtpState> VideoSendStream::GetRtpStates() const {
   return rtp_states;
 }
 
-void VideoSendStream::SignalNetworkState(Call::NetworkState state) {
+void VideoSendStream::SignalNetworkState(NetworkState state) {
   // When network goes up, enable RTCP status before setting transmission state.
   // When it goes down, disable RTCP afterwards. This ensures that any packets
   // sent due to the network state changed will not be dropped.
-  if (state == Call::kNetworkUp)
+  if (state == kNetworkUp)
     vie_channel_->SetRTCPMode(kRtcpCompound);
-  vie_encoder_->SetNetworkTransmissionState(state == Call::kNetworkUp);
-  if (state == Call::kNetworkDown)
+  vie_encoder_->SetNetworkTransmissionState(state == kNetworkUp);
+  if (state == kNetworkDown)
     vie_channel_->SetRTCPMode(kRtcpOff);
 }