1// Copyright 2013 The Chromium Authors. All rights reserved. 2// Use of this source code is governed by a BSD-style license that can be 3// found in the LICENSE file. 4 5#include "components/user_prefs/user_prefs.h" 6 7#include "base/logging.h" 8#include "base/memory/singleton.h" 9#include "base/prefs/pref_service.h" 10#include "content/public/browser/browser_context.h" 11 12namespace user_prefs { 13 14namespace { 15 16void* UserDataKey() { 17 // We just need a unique constant. Use the address of a static that 18 // COMDAT folding won't touch in an optimizing linker. 19 static int data_key = 0; 20 return reinterpret_cast<void*>(&data_key); 21} 22 23} // namespace 24 25// static 26PrefService* UserPrefs::Get(content::BrowserContext* context) { 27 DCHECK(context); 28 DCHECK(context->GetUserData(UserDataKey())); 29 return static_cast<UserPrefs*>( 30 context->GetUserData(UserDataKey()))->prefs_; 31} 32 33// static 34void UserPrefs::Set(content::BrowserContext* context, PrefService* prefs) { 35 DCHECK(context); 36 DCHECK(prefs); 37 DCHECK(!context->GetUserData(UserDataKey())); 38 context->SetUserData(UserDataKey(), new UserPrefs(prefs)); 39} 40 41UserPrefs::UserPrefs(PrefService* prefs) : prefs_(prefs) { 42} 43 44UserPrefs::~UserPrefs() { 45} 46 47} // namespace user_prefs 48