DO NOT COMMIT: Experimentation with ports

extensions/renderer/messaging_bindings.h

Index: extensions/renderer/messaging_bindings.h
diff --git a/extensions/renderer/messaging_bindings.h b/extensions/renderer/messaging_bindings.h
index 758187e1782580526f83b37fb54613e018bc186b..6e469ed614450b53a64338b4f86bcef3e8f4c8aa 100644
--- a/extensions/renderer/messaging_bindings.h
+++ b/extensions/renderer/messaging_bindings.h
@@ -5,6 +5,7 @@
 #ifndef EXTENSIONS_RENDERER_MESSAGING_BINDINGS_H_
 #define EXTENSIONS_RENDERER_MESSAGING_BINDINGS_H_
 
+#include <set>
 #include <string>
 
 #include "base/macros.h"
@@ -71,6 +72,8 @@ class MessagingBindings : public ObjectBackedNativeHandler {
   // Removes the port with the given |local_id|.
   void RemovePortWithLocalId(int local_id);
 
+  bool DidCreatePortWithGlobalId(int global_id) const;
+
   base::WeakPtr<MessagingBindings> GetWeakPtr();
 
  private:
@@ -114,6 +117,9 @@ class MessagingBindings : public ObjectBackedNativeHandler {
   // initialized and any pending messages are sent, these ports are removed.
   PortMap disconnected_ports_;
 
+  std::set<int> created_local_port_ids_;
+  std::set<int> created_global_port_ids_;
+
   // The next available local id for a port.
   size_t next_local_id_ = 0;