Start consolidating cross-port file selection code into ui/base/dialogs.

chrome/browser/download/save_package_file_picker_chromeos.cc

 // Copyright (c) 2012 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/download/save_package_file_picker_chromeos.h"
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/i18n/file_util_icu.h"
 #include "base/threading/sequenced_worker_pool.h"
 #include "chrome/browser/chromeos/gdata/gdata_download_observer.h"
 #include "chrome/browser/chromeos/gdata/gdata_util.h"
 #include "chrome/browser/platform_util.h"
 #include "chrome/browser/profiles/profile_manager.h"
+#include "chrome/browser/ui/chrome_select_file_policy.h"
 #include "content/public/browser/browser_thread.h"
 #include "content/public/browser/download_item.h"
 #include "content/public/browser/web_contents.h"
 
 namespace {
 
 // If false, we don't prompt the user as to where to save the file.  This
 // exists only for testing.
 bool g_should_prompt_for_filename = true;
 
 // Trampoline callback between GetGDataTempDownloadPath() and |callback|.
 void ContinueSettingUpGDataDownload(
     const content::SavePackagePathPickedCallback& callback,
     const FilePath& gdata_path,
     const FilePath& gdata_tmp_download_path) {
   callback.Run(gdata_tmp_download_path, content::SAVE_PAGE_TYPE_AS_MHTML,
                base::Bind(&gdata::GDataDownloadObserver::SetDownloadParams,
                           gdata_path));
 }
 
 }  // anonymous namespace
 
 SavePackageFilePickerChromeOS::SavePackageFilePickerChromeOS(
     content::WebContents* web_contents,
     const FilePath& suggested_path,
     const content::SavePackagePathPickedCallback& callback)
     : content::WebContentsObserver(web_contents),
       callback_(callback) {
   if (g_should_prompt_for_filename) {
-    select_file_dialog_ = SelectFileDialog::Create(this);
+    select_file_dialog_ = SelectFileDialog::Create(
+        this, new ChromeSelectFilePolicy(web_contents));
     select_file_dialog_->SelectFile(SelectFileDialog::SELECT_SAVEAS_FILE,
                                     string16(),
                                     suggested_path.ReplaceExtension("mhtml"),
                                     NULL,
                                     0,
                                     "mhtml",
-                                    web_contents,
                                     platform_util::GetTopLevel(
                                         web_contents->GetNativeView()),
                                     NULL);
   } else {
     FileSelected(suggested_path.ReplaceExtension("mhtml"), 0, NULL);
   }
 }
 
 void SavePackageFilePickerChromeOS::SetShouldPromptUser(bool should_prompt) {
   g_should_prompt_for_filename = should_prompt;
@@ skipping 28 matching lines @@
   } else {
     callback_.Run(selected_path, content::SAVE_PAGE_TYPE_AS_MHTML,
                   content::SavePackageDownloadCreatedCallback());
   }
   delete this;
 }
 
 void SavePackageFilePickerChromeOS::FileSelectionCanceled(void* params) {
   delete this;
 }