Revert of Remove supports_touch_events flag from BasicDesktopEnvironment

remoting/host/desktop_session_proxy.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_SESSION_PROXY_H_
 #define REMOTING_HOST_DESKTOP_SESSION_PROXY_H_
 
 #include <cstdint>
 #include <map>
 #include <memory>
@@ skipping 58 matching lines @@
     : public base::RefCountedThreadSafe<DesktopSessionProxy,
                                         DesktopSessionProxyTraits>,
       public IPC::Listener {
  public:
   DesktopSessionProxy(
       scoped_refptr<base::SingleThreadTaskRunner> audio_capture_task_runner,
       scoped_refptr<base::SingleThreadTaskRunner> caller_task_runner,
       scoped_refptr<base::SingleThreadTaskRunner> io_task_runner,
       base::WeakPtr<ClientSessionControl> client_session_control,
       base::WeakPtr<DesktopSessionConnector> desktop_session_connector,
-      bool virtual_terminal);
+      bool virtual_terminal,
+      bool supports_touch_events);
 
   // Mirrors DesktopEnvironment.
   std::unique_ptr<AudioCapturer> CreateAudioCapturer();
   std::unique_ptr<InputInjector> CreateInputInjector();
   std::unique_ptr<ScreenControls> CreateScreenControls();
   std::unique_ptr<webrtc::DesktopCapturer> CreateVideoCapturer();
   std::unique_ptr<webrtc::MouseCursorMonitor> CreateMouseCursorMonitor();
   std::string GetCapabilities() const;
   void SetCapabilities(const std::string& capabilities);
 
@@ skipping 125 matching lines @@
 
   // Keeps the desired screen resolution so it can be passed to a newly attached
   // desktop session agent.
   ScreenResolution screen_resolution_;
 
   // True if |this| has been connected to the desktop session.
   bool is_desktop_session_connected_;
 
   bool virtual_terminal_;
 
+  // True if touch events are supported by the desktop session.
+  bool supports_touch_events_;
+
   // Stores the session id for the proxied desktop process.
   uint32_t desktop_session_id_ = UINT32_MAX;
 
   DISALLOW_COPY_AND_ASSIGN(DesktopSessionProxy);
 };
 
 // Destroys |DesktopSessionProxy| instances on the caller's thread.
 struct DesktopSessionProxyTraits {
   static void Destruct(const DesktopSessionProxy* desktop_session_proxy);
 };
 
 }  // namespace remoting
 
 #endif  // REMOTING_HOST_DESKTOP_SESSION_PROXY_H_