remoting: Cleanup class/struct fwd declarations

remoting/host/it2me/it2me_host.h

 // Copyright 2013 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_IT2ME_IT2ME_HOST_H_
 #define REMOTING_HOST_IT2ME_IT2ME_HOST_H_
 
 #include <memory>
 #include <string>
 
@@ skipping 13 matching lines @@
 namespace policy {
 class PolicyService;
 }  // namespace policy
 
 namespace remoting {
 
 class ChromotingHost;
 class ChromotingHostContext;
 class DesktopEnvironmentFactory;
 class HostEventLogger;
-class HostNPScriptObject;
 class HostStatusLogger;
 class PolicyWatcher;
 class RegisterSupportHostRequest;
 class RsaKeyPair;
 
 // These state values are duplicated in host_session.js.  Remember to update
 // both copies when making changes.
 enum It2MeHostState {
   kDisconnected,
   kStarting,
@@ skipping 176 matching lines @@
       const std::string& username,
       const std::string& directory_bot_jid);
 
  private:
   DISALLOW_COPY_AND_ASSIGN(It2MeHostFactory);
 };
 
 }  // namespace remoting
 
 #endif  // REMOTING_HOST_IT2ME_IT2ME_HOST_H_