Enforce the RemoteAccessHostRequireCurtain policy on all platforms.

remoting/host/curtain_mode.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_CURTAIN_MODE_H_
 #define REMOTING_HOST_CURTAIN_MODE_H_
 
 #include <string>
 
 #include "base/basictypes.h"
@@ skipping 11 matching lines @@
   // Creates a CurtainMode object, with callbacks to be invoked when the
   // switched-out session is switched back to the console, or in case of errors
   // activating the curtain. Typically, remote clients should be disconnected in
   // both cases: for errors, because the privacy guarantee of curtain-mode
   // cannot be honoured; for switch-in, to ensure that only one connection
   // (console or remote) exists to a session.
   static scoped_ptr<CurtainMode> Create(
       const base::Closure& on_session_activate,
       const base::Closure& on_error);
 
-  // Sets/gets whether the curtain mode is required by policy.
-  // TODO(rmsousa): Remove this piece of implementation from the interface once
-  // we have a good way to do so.
-  void set_required(bool required) { required_ = required; }
-  bool required() { return required_; }
-
   // Activate or deactivate curtain mode.
   // If activated is true (meaning a remote client has just logged in), the
   // implementation must immediately activate the curtain, or call on_error if
   // it cannot do so. If a console user logs in while the curtain is activated,
   // the implementation must call on_session_activate (from any thread).
   // If activated is false (meaning the remote client has disconnected), the
   // implementation must not remove the curtain (since at this point we can make
   // no guarantees about whether the user intended to leave the console locked),
   // and must not call on_session_activate when the console user logs in.
   virtual void SetActivated(bool activated) = 0;
 
  protected:
-  CurtainMode() : required_(false) {}
+  CurtainMode() {}
 
  private:
-  bool required_;
-
   DISALLOW_COPY_AND_ASSIGN(CurtainMode);
 };
 
 }  // namespace remoting
 
 #endif