New PeerConnection handler in Chrome to support latest PeerConnection draft

content/renderer/media/peer_connection_handler_base.cc

Index: content/renderer/media/peer_connection_handler_base.cc
diff --git a/content/renderer/media/peer_connection_handler_base.cc b/content/renderer/media/peer_connection_handler_base.cc
index 156d0f157a79473302218ec722adcdb04f5d01d3..aee660ab9facd252df10dcea51cce7c301b0cdb4 100644
--- a/content/renderer/media/peer_connection_handler_base.cc
+++ b/content/renderer/media/peer_connection_handler_base.cc
@@ -39,6 +39,16 @@ void PeerConnectionHandlerBase::AddStream(
   DCHECK(native_stream);
 }
 
+bool PeerConnectionHandlerBase::AddStream(
+    const WebKit::WebMediaStreamDescriptor& stream,
+    const webrtc::MediaConstraintsInterface* constraints) {
+  webrtc::LocalMediaStreamInterface* native_stream =
+      GetLocalNativeMediaStream(stream);
+  if (!native_stream)
+    return false;
+  return native_peer_connection_->AddStream(native_stream, constraints);
+}
+
 void PeerConnectionHandlerBase::RemoveStream(
     const WebKit::WebMediaStreamDescriptor& stream) {
   webrtc::LocalMediaStreamInterface* native_stream =