Move remaining non-test, non-Chrome-specific Prefs code to base/prefs/.

chrome/browser/extensions/default_apps_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/extensions/external_pref_loader.h"
 
 #include "base/memory/scoped_ptr.h"
+#include "base/prefs/pref_service.h"
 #include "chrome/browser/extensions/default_apps.h"
-#include "chrome/browser/prefs/pref_service.h"
 #include "chrome/common/chrome_paths.h"
 #include "chrome/common/extensions/extension.h"
 #include "chrome/common/pref_names.h"
 #include "chrome/test/base/testing_profile.h"
 #include "content/public/test/test_browser_thread.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using default_apps::Provider;
 using namespace extensions;
 
@@ skipping 64 matching lines @@
                      Manifest::INTERNAL, Extension::NO_FLAGS);
   // The old default apps with kProvideLegacyDefaultApps should be migrated
   // even if the profile version is older than Chrome version.
   profile->GetPrefs()->SetInteger(prefs::kDefaultAppsInstallState,
       default_apps::kProvideLegacyDefaultApps);
   EXPECT_TRUE(provider2.ShouldInstallInProfile());
   state = profile->GetPrefs()->GetInteger(prefs::kDefaultAppsInstallState);
   EXPECT_TRUE(state == default_apps::kAlreadyInstalledDefaultApps);
 }
 #endif