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

chrome/browser/background/background_mode_manager_win.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 "base/base_paths.h"
 #include "base/bind.h"
 #include "base/command_line.h"
 #include "base/file_path.h"
 #include "base/logging.h"
 #include "base/path_service.h"
-#include "base/task.h"
 #include "base/utf_string_conversions.h"
 #include "base/win/registry.h"
 #include "chrome/browser/background/background_mode_manager.h"
 #include "chrome/common/chrome_switches.h"
 #include "content/public/browser/browser_thread.h"
 #include "grit/chromium_strings.h"
 #include "grit/generated_resources.h"
 #include "third_party/skia/include/core/SkBitmap.h"
 #include "ui/base/l10n/l10n_util.h"
 
@@ skipping 69 matching lines @@
       l10n_util::GetStringUTF16(IDS_BACKGROUND_APP_INSTALLED_BALLOON_TITLE),
       l10n_util::GetStringFUTF16(
           IDS_BACKGROUND_APP_INSTALLED_BALLOON_BODY,
           UTF8ToUTF16(extension->name()),
           l10n_util::GetStringUTF16(IDS_PRODUCT_NAME)));
 }
 
 string16 BackgroundModeManager::GetPreferencesMenuLabel() {
   return l10n_util::GetStringUTF16(IDS_OPTIONS);
 }