Revert of Remove supports_touch_events flag from BasicDesktopEnvironment

remoting/host/remoting_me2me_host.cc

 // 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.
 //
 // This file implements a standalone host process for Me2Me.
 
 #include <stddef.h>
 
 #include <cstdint>
 #include <memory>
@@ skipping 831 matching lines @@
   if (enable_window_capture_) {
     desktop_environment_factory = new SingleWindowDesktopEnvironmentFactory(
         context_->network_task_runner(), context_->video_capture_task_runner(),
         context_->input_task_runner(), context_->ui_task_runner(), window_id_);
   } else {
     desktop_environment_factory = new Me2MeDesktopEnvironmentFactory(
         context_->network_task_runner(), context_->video_capture_task_runner(),
         context_->input_task_runner(), context_->ui_task_runner());
   }
 #endif  // !defined(REMOTING_MULTI_PROCESS)
+  desktop_environment_factory->set_supports_touch_events(
+      InputInjector::SupportsTouchEvents());
 
   desktop_environment_factory_.reset(desktop_environment_factory);
 
   context_->network_task_runner()->PostTask(
       FROM_HERE,
       base::Bind(&HostProcess::StartOnNetworkThread, this));
 }
 
 void HostProcess::ShutdownOnUiThread() {
   DCHECK(context_->ui_task_runner()->BelongsToCurrentThread());
@@ skipping 798 matching lines @@
       base::TimeDelta::FromSeconds(kShutdownTimeoutSeconds));
   new HostProcess(std::move(context), &exit_code, &shutdown_watchdog);
 
   // Run the main (also UI) message loop until the host no longer needs it.
   base::RunLoop().Run();
 
   return exit_code;
 }
 
 }  // namespace remoting