DO NOT COMMIT: Experimentation with ports

extensions/renderer/messaging_bindings.h

 // Copyright 2014 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #ifndef EXTENSIONS_RENDERER_MESSAGING_BINDINGS_H_
 #define EXTENSIONS_RENDERER_MESSAGING_BINDINGS_H_
 
+#include <set>
 #include <string>
 
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
 #include "extensions/renderer/object_backed_native_handler.h"
 
 struct ExtensionMsg_ExternalConnectionInfo;
 struct ExtensionMsg_TabConnectionInfo;
 
 namespace content {
@@ skipping 46 matching lines @@
   // Returns an existing port with the given |global_id|, or null.
   ExtensionPort* GetPortWithGlobalId(int global_id);
 
   // Creates a new port with the given |global_id|. MessagingBindings owns the
   // returned port.
   ExtensionPort* CreateNewPortWithGlobalId(int global_id);
 
   // Removes the port with the given |local_id|.
   void RemovePortWithLocalId(int local_id);
 
+  bool DidCreatePortWithGlobalId(int global_id) const;
+
   base::WeakPtr<MessagingBindings> GetWeakPtr();
 
  private:
   using PortMap = std::map<int, std::unique_ptr<ExtensionPort>>;
 
   // JS Exposed Function: Sends a message along the given channel.
   void PostMessage(const v8::FunctionCallbackInfo<v8::Value>& args);
 
   // JS Exposed Function: Close a port, optionally forcefully (i.e. close the
   // whole channel instead of just the given port).
@@ skipping 23 matching lines @@
 
   int GetNextLocalId();
 
   // Active ports, mapped by local port id.
   PortMap ports_;
 
   // Ports which are disconnected, but haven't been fully initialized. Once
   // 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;
 
   // The number of ports created in the 'beforeunload' event handler.
   size_t ports_created_in_before_unload_ = 0;
 
   // The number of ports created in the 'unload' event handler.
   size_t ports_created_in_unload_ = 0;
 
   // The number of ports created during during any time that isn't in the unload
   // or beforeunload handlers.
   int ports_created_normal_ = 0;
 
   base::WeakPtrFactory<MessagingBindings> weak_ptr_factory_;
 
   DISALLOW_COPY_AND_ASSIGN(MessagingBindings);
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_RENDERER_MESSAGING_BINDINGS_H_