Revert of Remove supports_touch_events flag from BasicDesktopEnvironment

remoting/host/me2me_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_ME2ME_DESKTOP_ENVIRONMENT_H_
 #define REMOTING_HOST_ME2ME_DESKTOP_ENVIRONMENT_H_
 
 #include "base/macros.h"
 #include "remoting/host/basic_desktop_environment.h"
 
@@ skipping 12 matching lines @@
   // DesktopEnvironment interface.
   std::unique_ptr<ScreenControls> CreateScreenControls() override;
   std::string GetCapabilities() const override;
 
  protected:
   friend class Me2MeDesktopEnvironmentFactory;
   Me2MeDesktopEnvironment(
       scoped_refptr<base::SingleThreadTaskRunner> caller_task_runner,
       scoped_refptr<base::SingleThreadTaskRunner> video_capture_task_runner,
       scoped_refptr<base::SingleThreadTaskRunner> input_task_runner,
-      scoped_refptr<base::SingleThreadTaskRunner> ui_task_runner);
+      scoped_refptr<base::SingleThreadTaskRunner> ui_task_runner,
+      bool supports_touch_events);
 
   // Initializes security features of the desktop environment (the curtain mode
   // and in-session UI).
   bool InitializeSecurity(
       base::WeakPtr<ClientSessionControl> client_session_control,
       bool curtain_enabled);
 
  private:
   // "Curtains" the session making sure it is disconnected from the local
   // console.
@@ skipping 29 matching lines @@
  private:
   // True if curtain mode is enabled.
   bool curtain_enabled_ = false;
 
   DISALLOW_COPY_AND_ASSIGN(Me2MeDesktopEnvironmentFactory);
 };
 
 }  // namespace remoting
 
 #endif  // REMOTING_HOST_ME2ME_DESKTOP_ENVIRONMENT_H_