[mojo-edk] Sanity checks on ports message parsing

mojo/edk/system/node_channel.h

Index: mojo/edk/system/node_channel.h
diff --git a/mojo/edk/system/node_channel.h b/mojo/edk/system/node_channel.h
index c8a97caf5e3b5076dbfae74698b16257a975e0c9..1aeccda10aa5f1123fdfb6d81a33a6d191159bc4 100644
--- a/mojo/edk/system/node_channel.h
+++ b/mojo/edk/system/node_channel.h
@@ -53,7 +53,8 @@ class NodeChannel : public base::RefCountedThreadSafe<NodeChannel>,
     virtual void OnAcceptBrokerClient(const ports::NodeName& from_node,
                                       const ports::NodeName& broker_name,
                                       ScopedPlatformHandle broker_channel) = 0;
-    virtual void OnPortsMessage(Channel::MessagePtr message) = 0;
+    virtual void OnPortsMessage(const ports::NodeName& from_node,
+                                Channel::MessagePtr message) = 0;
     virtual void OnRequestPortMerge(const ports::NodeName& from_node,
                                     const ports::PortName& connector_port_name,
                                     const std::string& token) = 0;