Add a command line argument to disable message boxes. This is useful to...

app/win_util.cc

 // Copyright (c) 2006-2009 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 "app/win_util.h"
 
 #include <atlbase.h>
 #include <atlapp.h>
 #include <commdlg.h>
 #include <dwmapi.h>
 #include <shellapi.h>
 #include <shlobj.h>
 
 #include "app/l10n_util.h"
 #include "app/l10n_util_win.h"
+#include "base/base_switches.h"
+#include "base/command_line.h"
 #include "base/file_util.h"
 #include "base/gfx/gdi_util.h"
 #include "base/gfx/png_encoder.h"
 #include "base/logging.h"
 #include "base/registry.h"
 #include "base/scoped_handle.h"
 #include "base/string_util.h"
 #include "base/win_util.h"
 #include "grit/app_strings.h"
 #include "net/base/mime_util.h"
@@ skipping 762 matching lines @@
   return false;
 }
 
 // In addition to passing the RTL flags to ::MessageBox if we are running in an
 // RTL locale, we need to make sure that LTR strings are rendered correctly by
 // adding the appropriate Unicode directionality marks.
 int MessageBox(HWND hwnd,
                const std::wstring& text,
                const std::wstring& caption,
                UINT flags) {
+  if (CommandLine::ForCurrentProcess()->HasSwitch(switches::kNoMessageBox))
+    return IDOK;
+
   UINT actual_flags = flags;
   if (l10n_util::GetTextDirection() == l10n_util::RIGHT_TO_LEFT)
     actual_flags |= MB_RIGHT | MB_RTLREADING;
 
   std::wstring localized_text;
   const wchar_t* text_ptr = text.c_str();
   if (l10n_util::AdjustStringForLocaleDirection(text, &localized_text))
     text_ptr = localized_text.c_str();
 
   std::wstring localized_caption;
   const wchar_t* caption_ptr = caption.c_str();
   if (l10n_util::AdjustStringForLocaleDirection(caption, &localized_caption))
     caption_ptr = localized_caption.c_str();
 
   return ::MessageBox(hwnd, text_ptr, caption_ptr, actual_flags);
 }
 
 gfx::Font GetWindowTitleFont() {
   NONCLIENTMETRICS ncm;
   win_util::GetNonClientMetrics(&ncm);
   l10n_util::AdjustUIFont(&(ncm.lfCaptionFont));
   ScopedHFONT caption_font(CreateFontIndirect(&(ncm.lfCaptionFont)));
   return gfx::Font::CreateFont(caption_font);
 }
 
 }  // namespace win_util