Implement a dummy host to do capturing and analysis only.

remoting/host/it2me_desktop_environment.cc

 // Copyright 2013 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.
 
 #include "remoting/host/it2me_desktop_environment.h"
 
 #include <utility>
 
+#include "base/command_line.h"

[joedow, 2016/05/03 22:28:29]

Can you remove this header now?

[Hzj_jie, 2016/05/04 02:11:56]

Done.

 #include "base/logging.h"
 #include "base/memory/ptr_util.h"
 #include "base/single_thread_task_runner.h"
 #include "build/build_config.h"
 #include "remoting/host/client_session_control.h"
 #include "remoting/host/host_window.h"
 #include "remoting/host/host_window_proxy.h"
 #include "remoting/host/local_input_monitor.h"
 
 #if defined(OS_POSIX)
 #include <sys/types.h>
 #include <unistd.h>
 #endif  // defined(OS_POSIX)
 
 namespace remoting {
 
 It2MeDesktopEnvironment::~It2MeDesktopEnvironment() {
   DCHECK(caller_task_runner()->BelongsToCurrentThread());
 }
 
 It2MeDesktopEnvironment::It2MeDesktopEnvironment(
     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,
     base::WeakPtr<ClientSessionControl> client_session_control,
-    bool supports_touch_events)
+    bool supports_touch_events,
+    bool enable_user_interface)
     : BasicDesktopEnvironment(caller_task_runner,
                               video_capture_task_runner,
                               input_task_runner,
                               ui_task_runner,
                               supports_touch_events) {
   DCHECK(caller_task_runner->BelongsToCurrentThread());
 
   // Create the local input monitor.
   local_input_monitor_ = LocalInputMonitor::Create(caller_task_runner,
                                                    input_task_runner,
                                                    ui_task_runner,
                                                    client_session_control);
 
   // The host UI should be created on the UI thread.
-  bool want_user_interface = true;
 #if defined(OS_MACOSX)
   // Don't try to display any UI on top of the system's login screen as this
   // is rejected by the Window Server on OS X 10.7.4, and prevents the
   // capturer from working (http://crbug.com/140984).
 
   // TODO(lambroslambrou): Use a better technique of detecting whether we're
   // running in the LoginWindow context, and refactor this into a separate
   // function to be used here and in CurtainMode::ActivateCurtain().
-  want_user_interface = getuid() != 0;
+  enable_user_interface = getuid() != 0;
 #endif  // defined(OS_MACOSX)
 
   // Create the continue and disconnect windows.
-  if (want_user_interface) {
+  if (enable_user_interface) {
     continue_window_ = HostWindow::CreateContinueWindow();
     continue_window_.reset(new HostWindowProxy(
         caller_task_runner, ui_task_runner, std::move(continue_window_)));
     continue_window_->Start(client_session_control);
 
     disconnect_window_ = HostWindow::CreateDisconnectWindow();
     disconnect_window_.reset(new HostWindowProxy(
         caller_task_runner, ui_task_runner, std::move(disconnect_window_)));
     disconnect_window_->Start(client_session_control);
   }
@@ skipping 10 matching lines @@
                                      ui_task_runner) {}
 
 It2MeDesktopEnvironmentFactory::~It2MeDesktopEnvironmentFactory() {}
 
 std::unique_ptr<DesktopEnvironment> It2MeDesktopEnvironmentFactory::Create(
     base::WeakPtr<ClientSessionControl> client_session_control) {
   DCHECK(caller_task_runner()->BelongsToCurrentThread());
 
   return base::WrapUnique(new It2MeDesktopEnvironment(
       caller_task_runner(), video_capture_task_runner(), input_task_runner(),
-      ui_task_runner(), client_session_control, supports_touch_events()));
+      ui_task_runner(), client_session_control, supports_touch_events(),
+      enable_user_interface_));
 }
 
 }  // namespace remoting