Add header extension filtering for WebRtcVoiceEngine/MediaChannel.

talk/media/base/mediachannel.h

 /*
  * libjingle
  * Copyright 2004 Google Inc.
  *
  * Redistribution and use in source and binary forms, with or without
  * modification, are permitted provided that the following conditions are met:
  *
  *  1. Redistributions of source code must retain the above copyright notice,
  *     this list of conditions and the following disclaimer.
  *  2. Redistributions in binary form must reproduce the above copyright notice,
@@ skipping 395 matching lines @@
   bool operator==(const RtpHeaderExtension& ext) const {
     // id is a reserved word in objective-c. Therefore the id attribute has to
     // be a fully qualified name in order to compile on IOS.
     return this->id == ext.id &&
         uri == ext.uri;
   }
 
   std::string ToString() const {
     std::ostringstream ost;
     ost << "{";
-    ost << "id: , " << id;
     ost << "uri: " << uri;
+    ost << ", id: " << id;
     ost << "}";
     return ost.str();
   }
 
   std::string uri;
   int id;
   // TODO(juberti): SendRecv direction;
 };
 
 // Returns the named header extension if found among all extensions, NULL
@@ skipping 501 matching lines @@
   void Clear() {
     senders.clear();
     receivers.clear();
   }
   std::vector<DataSenderInfo> senders;
   std::vector<DataReceiverInfo> receivers;
 };
 
 template <class Codec>
 struct RtpParameters {
-  virtual std::string ToString() {
+  virtual std::string ToString() const {
     std::ostringstream ost;
     ost << "{";
     ost << "codecs: " << VectorToString(codecs) << ", ";
     ost << "extensions: " << VectorToString(extensions);
     ost << "}";
     return ost.str();
   }
 
   std::vector<Codec> codecs;
   std::vector<RtpHeaderExtension> extensions;
   // TODO(pthatcher): Add streams.
 };
 
 template <class Codec, class Options>
 struct RtpSendParameters : RtpParameters<Codec> {
-  std::string ToString() override {
+  std::string ToString() const override {
     std::ostringstream ost;
     ost << "{";
     ost << "codecs: " << VectorToString(this->codecs) << ", ";
     ost << "extensions: " << VectorToString(this->extensions) << ", ";
     ost << "max_bandiwidth_bps: " << max_bandwidth_bps << ", ";
     ost << "options: " << options.ToString();
     ost << "}";
     return ost.str();
   }
 
@@ skipping 187 matching lines @@
       ordered(false),
       reliable(false),
       max_rtx_count(0),
       max_rtx_ms(0) {
   }
 };
 
 enum SendDataResult { SDR_SUCCESS, SDR_ERROR, SDR_BLOCK };
 
 struct DataOptions {
-  std::string ToString() {
+  std::string ToString() const {
     return "{}";
   }
 };
 
 struct DataSendParameters : RtpSendParameters<DataCodec, DataOptions> {
-  std::string ToString() {
+  std::string ToString() const {
     std::ostringstream ost;
     // Options and extensions aren't used.
     ost << "{";
     ost << "codecs: " << VectorToString(codecs) << ", ";
     ost << "max_bandiwidth_bps: " << max_bandwidth_bps;
     ost << "}";
     return ost.str();
   }
 };
 
@@ skipping 34 matching lines @@
   // Signal when the media channel is ready to send the stream. Arguments are:
   //     writable(bool)
   sigslot::signal1<bool> SignalReadyToSend;
   // Signal for notifying that the remote side has closed the DataChannel.
   sigslot::signal1<uint32_t> SignalStreamClosedRemotely;
 };
 
 }  // namespace cricket
 
 #endif  // TALK_MEDIA_BASE_MEDIACHANNEL_H_