COM replaced with RPC for firing events in broker.

ceee/ie/broker/broker_rpc_client.h

+// Copyright (c) 2010 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.
+
+#include "base/basictypes.h"
+
+class BrokerRpcClient {
+ public:
+  BrokerRpcClient();
+  ~BrokerRpcClient();
+
+  bool Connect();
+  void Disconnect();
+  bool FireEvent(BSTR event_name, BSTR event_args);
+
+  bool is_connected() const {
+    return context_ != NULL && binding_handle_ != NULL;
+  }
+ private:
+  void LockContext();
+  void ReleaseContext();
+
+  RPC_BINDING_HANDLE binding_handle_;
+  void* context_;
+  DISALLOW_COPY_AND_ASSIGN(BrokerRpcClient);
+};