Fix Firefox import lock dialog on Windows....

chrome/browser/views/importer_lock_view.cc

 // Copyright (c) 2006-2008 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 "chrome/browser/views/importer_lock_view.h"
 
 #include "app/l10n_util.h"
 #include "base/message_loop.h"
 #include "chrome/browser/importer/importer.h"
 #include "grit/chromium_strings.h"
@@ skipping 36 matching lines @@
     MessageBoxFlags::DialogButton button) const {
   if (button == MessageBoxFlags::DIALOGBUTTON_OK) {
     return l10n_util::GetString(IDS_IMPORTER_LOCK_OK);
   } else if (button == MessageBoxFlags::DIALOGBUTTON_CANCEL) {
     return l10n_util::GetString(IDS_IMPORTER_LOCK_CANCEL);
   }
   return std::wstring();
 }
 
 bool ImporterLockView::IsModal() const {
-  return true;
+  return false;
 }
 
 std::wstring ImporterLockView::GetWindowTitle() const {
   return l10n_util::GetString(IDS_IMPORTER_LOCK_TITLE);
 }
 
 bool ImporterLockView::Accept() {
   MessageLoop::current()->PostTask(FROM_HERE, NewRunnableMethod(
       importer_host_, &ImporterHost::OnLockViewEnd, true));
   return true;
 }
 
 bool ImporterLockView::Cancel() {
   MessageLoop::current()->PostTask(FROM_HERE, NewRunnableMethod(
       importer_host_, &ImporterHost::OnLockViewEnd, false));
   return true;
 }
 
 views::View* ImporterLockView::GetContentsView() {
   return this;
 }