Split testing_pref_service.h/.cc into two parts, generic vs. Chrome-specific.

chrome/browser/ui/ash/launcher/chrome_launcher_controller_per_app_unittest.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/ui/ash/launcher/chrome_launcher_controller_per_app.h"
 
 #include <algorithm>
 #include <string>
 #include <vector>
 
 #include "ash/launcher/launcher_model.h"
 #include "base/command_line.h"
 #include "base/compiler_specific.h"
 #include "base/file_path.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop.h"
 #include "base/utf_string_conversions.h"
 #include "base/values.h"
 #include "chrome/browser/extensions/extension_service.h"
 #include "chrome/browser/extensions/test_extension_system.h"
 #include "chrome/browser/ui/ash/chrome_launcher_prefs.h"
 #include "chrome/browser/ui/ash/launcher/launcher_item_controller.h"
 #include "chrome/browser/ui/browser_commands.h"
 #include "chrome/browser/ui/browser_list.h"
 #include "chrome/browser/ui/tabs/tab_strip_model.h"
 #include "chrome/common/extensions/extension.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/test/base/browser_with_test_window_test.h"
-#include "chrome/test/base/testing_pref_service.h"
+#include "chrome/test/base/testing_pref_service_syncable.h"
 #include "chrome/test/base/testing_profile.h"
 #include "content/public/test/test_browser_thread.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "ui/base/models/menu_model.h"
 
 using extensions::Extension;
 using extensions::Manifest;
 
 namespace {
 const int kExpectedAppIndex = 1;
@@ skipping 441 matching lines @@
   {
     scoped_ptr<ui::MenuModel> menu(
         launcher_controller.CreateApplicationMenu(item_gmail));
     int first_item =
         (menu->GetTypeAt(0) == ui::MenuModel::TYPE_SEPARATOR) ? 1 : 0;
     menu->ActivatedAt(first_item + 3);
   }
   // Now the active tab should be the second item.
   EXPECT_EQ(0, browser()->tab_strip_model()->active_index());
 }