Remove task.h and finish base::Bind() migration.

chrome/browser/extensions/settings/settings_storage_unittest.h

 // 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.
 
 #ifndef CHROME_BROWSER_EXTENSIONS_SETTINGS_SETTINGS_STORAGE_UNITTEST_H_
 #define CHROME_BROWSER_EXTENSIONS_SETTINGS_SETTINGS_STORAGE_UNITTEST_H_
 #pragma once
 
 #include "testing/gtest/include/gtest/gtest.h"
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop.h"
 #include "base/scoped_temp_dir.h"
-#include "base/task.h"
 #include "chrome/browser/extensions/settings/settings_backend.h"
 #include "chrome/browser/extensions/settings/settings_frontend.h"
 #include "chrome/test/base/testing_profile.h"
 #include "content/test/test_browser_thread.h"
 
 namespace extensions {
 
 // Parameter type for the value-parameterized tests.
 typedef SettingsStorage* (*SettingsStorageTestParam)(
     const FilePath& file_path, const std::string& extension_id);
@@ skipping 48 matching lines @@
 
   // Need these so that the DCHECKs for running on FILE or UI threads pass.
   MessageLoop message_loop_;
   content::TestBrowserThread ui_thread_;
   content::TestBrowserThread file_thread_;
 };
 
 }  // namespace extensions
 
 #endif  // CHROME_BROWSER_EXTENSIONS_SETTINGS_SETTINGS_STORAGE_UNITTEST_H_