Add the plumbing that will carry a clipboard item from a chromoting client to a host.

remoting/host/event_executor.h

 // Copyright (c) 2011 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 REMOTING_HOST_EVENT_EXECUTOR_H_
 #define REMOTING_HOST_EVENT_EXECUTOR_H_
 
+#include "remoting/protocol/clipboard_stub.h"
 #include "remoting/protocol/input_stub.h"
 
 class MessageLoop;
 
 namespace remoting {
 
 class Capturer;
 
-class EventExecutor : public protocol::InputStub {
+class EventExecutor : public protocol::ClipboardStub,
+                      public protocol::InputStub {
  public:
   // Creates default event executor for the current platform.
   // Does not take ownership of |message_loop| or |capturer|.
   static EventExecutor* Create(MessageLoop* message_loop,
                                Capturer* capturer);
 };
 
 }  // namespace remoting
 
 #endif  // REMOTING_HOST_EVENT_EXECUTOR_H_