Automated IWYU fix for TaskRunner includes.

remoting/host/it2me_desktop_environment.h

 // 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.
 
 #ifndef REMOTING_HOST_IT2ME_DESKTOP_ENVIRONMENT_H_
 #define REMOTING_HOST_IT2ME_DESKTOP_ENVIRONMENT_H_
 
 #include <memory>
 
 #include "base/macros.h"
 #include "base/memory/weak_ptr.h"
+#include "base/single_thread_task_runner.h"
 #include "remoting/host/basic_desktop_environment.h"
 
 namespace remoting {
 
 class HostWindow;
 class LocalInputMonitor;
 
 // Same as BasicDesktopEnvironment but also presents the Continue window to
 // the local user.
 class It2MeDesktopEnvironment : public BasicDesktopEnvironment {
@@ skipping 38 matching lines @@
       base::WeakPtr<ClientSessionControl> client_session_control,
       const DesktopEnvironmentOptions& options) override;
 
  private:
   DISALLOW_COPY_AND_ASSIGN(It2MeDesktopEnvironmentFactory);
 };
 
 }  // namespace remoting
 
 #endif  // REMOTING_HOST_IT2ME_DESKTOP_ENVIRONMENT_H_