Remove the HostEventStub aggregate interface.

remoting/host/desktop_environment.h

 // Copyright (c) 2012 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_DESKTOP_ENVIRONMENT_H_
 #define REMOTING_HOST_DESKTOP_ENVIRONMENT_H_
 
 #include <string>
 
 #include "base/basictypes.h"
 #include "base/memory/scoped_ptr.h"
-#include "remoting/host/event_executor.h"
 
 namespace remoting {
 
 class AudioCapturer;
 class ChromotingHostContext;
+class EventExecutor;
 class VideoFrameCapturer;
 
 namespace protocol {
 class ClipboardStub;
-class HostEventStub;
 }
 
 class DesktopEnvironment {
  public:
   // Creates a DesktopEnvironment used in a host plugin.
   static scoped_ptr<DesktopEnvironment> Create(
       ChromotingHostContext* context);
 
   // Creates a DesktopEnvironment used in a service process.
   static scoped_ptr<DesktopEnvironment> CreateForService(
@@ skipping 31 matching lines @@
 
   // Executes input and clipboard events received from the client.
   scoped_ptr<EventExecutor> event_executor_;
 
   DISALLOW_COPY_AND_ASSIGN(DesktopEnvironment);
 };
 
 }  // namespace remoting
 
 #endif  // REMOTING_HOST_DESKTOP_ENVIRONMENT_H_