Move bundle filter from BaseChannel to RtpTransport.

webrtc/pc/rtptransport.h

Index: webrtc/pc/rtptransport.h
diff --git a/webrtc/pc/rtptransport.h b/webrtc/pc/rtptransport.h
index f9bee1b6cc7da03d6ad5a93680b0a70f004bf8cd..df08ba0c9fe34f0fe4be25d49258bca3a0fae874 100644
--- a/webrtc/pc/rtptransport.h
+++ b/webrtc/pc/rtptransport.h
@@ -13,6 +13,7 @@
 
 #include "webrtc/api/ortc/rtptransportinterface.h"
 #include "webrtc/base/sigslot.h"
+#include "webrtc/pc/bundlefilter.h"
 
 namespace rtc {
 
@@ -64,6 +65,12 @@ class RtpTransport : public RtpTransportInterface, public sigslot::has_slots<> {
                   const rtc::PacketOptions& options,
                   int flags);
 
+  bool HandlesPacket(const uint8_t* data, size_t len);
+
+  bool HandlesPayloadType(int payload_type);
+
+  void AddHandledPayloadType(int payload_type);
+
  protected:
   // TODO(zstein): Remove this when we remove RtpTransportAdapter.
   RtpTransportAdapter* GetInternal() override;
@@ -87,6 +94,8 @@ class RtpTransport : public RtpTransportInterface, public sigslot::has_slots<> {
   bool rtcp_ready_to_send_ = false;
 
   RtcpParameters rtcp_parameters_;
+
+  cricket::BundleFilter bundle_filter_;
 };
 
 }  // namespace webrtc