Remove unused ImportProgressDialog.

chrome/browser/first_run/first_run_import_observer.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 "chrome/browser/first_run/first_run_import_observer.h"
-
-#include "base/message_loop.h"
-#include "content/public/common/result_codes.h"
-
-FirstRunImportObserver::FirstRunImportObserver()
-    : loop_running_(false), import_result_(content::RESULT_CODE_NORMAL_EXIT) {
-}
-
-FirstRunImportObserver::~FirstRunImportObserver() {
-}
-
-void FirstRunImportObserver::RunLoop() {
-  loop_running_ = true;
-  MessageLoop::current()->Run();
-}
-
-void FirstRunImportObserver::Finish() {
-  if (loop_running_)
-    MessageLoop::current()->Quit();
-}
-
-void FirstRunImportObserver::ImportCompleted() {
-  import_result_ = content::RESULT_CODE_NORMAL_EXIT;
-  Finish();
-}