COM replaced with RPC for firing events in broker.

ceee/ie/broker/broker.h

Index: ceee/ie/broker/broker.h
===================================================================
--- ceee/ie/broker/broker.h	(revision 65953)
+++ ceee/ie/broker/broker.h	(working copy)
@@ -27,14 +27,12 @@
     : public CComObjectRootEx<CComMultiThreadModel>,
       public CComCoClass<CeeeBroker, &CLSID_CeeeBroker>,
       public ICeeeBroker,
-      public ICeeeBrokerRegistrar,
-      public IExternalConnectionImpl<CeeeBroker> {
+      public ICeeeBrokerRegistrar {
  public:
   DECLARE_REGISTRY_RESOURCEID(IDR_BROKER)
 
   DECLARE_NOT_AGGREGATABLE(CeeeBroker)
   BEGIN_COM_MAP(CeeeBroker)
-    COM_INTERFACE_ENTRY(IExternalConnection)
     COM_INTERFACE_ENTRY(ICeeeBrokerRegistrar)
     COM_INTERFACE_ENTRY(ICeeeBroker)
   END_COM_MAP()
@@ -57,10 +55,6 @@
   STDMETHOD(SetTabIdForHandle)(long tab_id, CeeeWindowHandle handle);
   // @}
 
-  // IExternalConnectionImpl overrides
-  void OnAddConnection(bool first_lock);
-  void OnReleaseConnection(bool last_unlock, bool last_unlock_releases);
-
  protected:
   // A pointer to single instance objects, or seams set for unittests.
   ExecutorsManager * executors_manager_;