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

chrome/browser/debugger/devtools_file_helper.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/debugger/devtools_file_helper.h"
 
 #include "base/bind.h"
+#include "base/callback.h"
 #include "base/file_util.h"
 #include "base/lazy_instance.h"
 #include "base/md5.h"
 #include "base/value_conversions.h"
 #include "chrome/browser/browser_process.h"
 #include "chrome/browser/download/download_prefs.h"
 #include "chrome/browser/prefs/pref_service.h"
 #include "chrome/browser/prefs/scoped_user_pref_update.h"
 #include "chrome/browser/profiles/profile.h"
 #include "chrome/browser/ui/select_file_dialog.h"
@@ skipping 27 matching lines @@
 
     url_ = url;
     content_ = content;
 
     select_file_dialog_->SelectFile(SelectFileDialog::SELECT_SAVEAS_FILE,
                                     string16(),
                                     initial_path,
                                     NULL,
                                     0,
                                     FILE_PATH_LITERAL(""),
-                                    NULL,
+                                    base::Closure(),
                                     NULL,
                                     NULL);
   }
 
   // SelectFileDialog::Listener implementation.
   virtual void FileSelected(const FilePath& path,
                             int index, void* params) {
     if (helper_)
       helper_->FileSelected(url_, path, content_);
     Release();  // Balanced in ::Show.
@@ skipping 115 matching lines @@
   files_map->SetWithoutPathExpansion(base::MD5String(url),
                                      base::CreateFilePathValue(path));
   delegate_->FileSavedAs(url);
 
   BrowserThread::PostTask(
       BrowserThread::FILE, FROM_HERE,
       base::Bind(&DevToolsFileHelper::WriteFile,
                  path,
                  content));
 }