Refactor app_list_util.h into AppListService abstract base.

chrome/browser/ui/app_list/app_list_util.cc

-// Copyright 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/app_list/app_list_util.h"
-
-#include "base/file_util.h"
-#include "build/build_config.h"
-#include "chrome/browser/browser_process.h"
-#include "chrome/browser/extensions/extension_prefs.h"
-#include "chrome/browser/prefs/pref_registry_simple.h"
-#include "chrome/browser/prefs/pref_service.h"
-#include "chrome/common/chrome_constants.h"
-#include "chrome/common/pref_names.h"
-
-namespace chrome {
-
-#if defined(OS_CHROMEOS)
-// Default implementation for ports which do not have this implemented.
-void InitAppList(Profile* profile) {}
-#endif
-
-#if defined(ENABLE_APP_LIST)
-base::FilePath GetAppListProfilePath(const base::FilePath& user_data_dir) {
-  PrefService* local_state = g_browser_process->local_state();
-  DCHECK(local_state);
-
-  std::string app_list_profile;
-  if (local_state->HasPrefPath(prefs::kAppListProfile))
-    app_list_profile = local_state->GetString(prefs::kAppListProfile);
-
-  // If the user has no profile preference for the app launcher, default to the
-  // last browser profile used.
-  if (app_list_profile.empty() &&
-      local_state->HasPrefPath(prefs::kProfileLastUsed))
-    app_list_profile = local_state->GetString(prefs::kProfileLastUsed);
-
-  std::string profile_path = app_list_profile.empty() ?
-      chrome::kInitialProfile :
-      app_list_profile;
-
-  return user_data_dir.AppendASCII(profile_path);
-}
-
-void RegisterAppListPrefs(PrefRegistrySimple* registry) {
-  registry->RegisterStringPref(prefs::kAppListProfile, "");
-}
-#endif  // defined(ENABLE_APP_LIST)
-
-
-}  // namespace chrome