Move code in src/remoting to the new callbacks.

remoting/host/disconnect_window_win.cc

 // Copyright (c) 2011 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/disconnect_window.h"
 
 #include <windows.h>
 
 #include "base/compiler_specific.h"
 #include "base/logging.h"
@@ skipping 186 matching lines @@
     int top = monitor_info.rcWork.bottom - window_height;
     int left = (monitor_info.rcWork.right + monitor_info.rcWork.left -
         window_width) / 2;
     SetWindowPos(hwnd_, NULL, left, top, 0, 0, SWP_NOSIZE | SWP_NOZORDER);
   }
   ShowWindow(hwnd_, SW_SHOW);
 }
 
 void DisconnectWindowWin::ShutdownHost() {
   CHECK(host_);
-  host_->Shutdown(NULL);
+  host_->Shutdown(base::Closure());
 }
 
 static int GetControlTextWidth(HWND control) {
   RECT rect = {0, 0, 0, 0};
   WCHAR text[256];
   int result = GetWindowText(control, text, arraysize(text));
   if (result) {
     base::win::ScopedGetDC dc(control);
     base::win::ScopedSelectObject font(
         dc, (HFONT)SendMessage(control, WM_GETFONT, 0, 0));
@@ skipping 70 matching lines @@
     ::EndDialog(hwnd_, result);
     hwnd_ = NULL;
   }
 }
 
 DisconnectWindow* DisconnectWindow::Create() {
   return new DisconnectWindowWin;
 }
 
 }  // namespace remoting