[Chromoting] Use HostExperimentSessionPlugin in host

remoting/host/desktop_environment_options.h

 // Copyright 2016 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_OPTIONS_H_
 #define REMOTING_HOST_DESKTOP_ENVIRONMENT_OPTIONS_H_
 
 #include <memory>
 
 #include "base/memory/weak_ptr.h"
+#include "remoting/host/host_session_options.h"
 #include "third_party/webrtc/modules/desktop_capture/desktop_capture_options.h"
 
-namespace webrtc {
-class DesktopCaptureOptions;
-}  // namespace webrtc
-
 namespace remoting {
 
 // A container of options a DesktopEnvironment or its derived classes need to
 // control the behavior.
 class DesktopEnvironmentOptions final {
  public:
   // Returns instance of DesktopEnvironmentOptions with default parameters, and
   // initializes DesktopCaptureOptions by using
   // DesktopCaptureOptions::CreateDefault().
   static DesktopEnvironmentOptions CreateDefault();
 
   DesktopEnvironmentOptions();
   DesktopEnvironmentOptions(DesktopEnvironmentOptions&& other);
   DesktopEnvironmentOptions(const DesktopEnvironmentOptions& other);
   ~DesktopEnvironmentOptions();
 
   DesktopEnvironmentOptions& operator=(DesktopEnvironmentOptions&& other);
   DesktopEnvironmentOptions& operator=(const DesktopEnvironmentOptions& other);
 
   bool enable_curtaining() const;
   void set_enable_curtaining(bool enabled);
 
   bool enable_user_interface() const;
   void set_enable_user_interface(bool enabled);
 
   const webrtc::DesktopCaptureOptions* desktop_capture_options() const;
   webrtc::DesktopCaptureOptions* desktop_capture_options();
 
+  // Reads configurations from a HostSessionOptions instance.
+  void ApplyHostSessionOptions(const HostSessionOptions& options);
+
  private:
   // Sets default values for default constructor and CreateDefault() function.
   void Initialize();
 
   // True if the curtain mode should be enabled by the DesktopEnvironment
   // instances. Note, not all DesktopEnvironments support curtain mode.
   bool enable_curtaining_ = false;
 
   // True if a user-interactive window is showing up in it2me scenario.
   bool enable_user_interface_ = true;
 
   // The DesktopCaptureOptions to initialize DesktopCapturer.
   webrtc::DesktopCaptureOptions desktop_capture_options_;
 };
 
 }  // namespace remoting
 
 #endif  // REMOTING_HOST_DESKTOP_ENVIRONMENT_OPTIONS_H_