Move ExtensionPrefs and friends to extensions/ directory.

chrome/browser/extensions/extension_pref_value_map_factory.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/extension_pref_value_map_factory.h"
-
-#include "chrome/browser/extensions/extension_pref_value_map.h"
-#include "components/browser_context_keyed_service/browser_context_dependency_manager.h"
-
-ExtensionPrefValueMapFactory::ExtensionPrefValueMapFactory()
-    : BrowserContextKeyedServiceFactory(
-        "ExtensionPrefValueMap",
-        BrowserContextDependencyManager::GetInstance()) {
-}
-
-ExtensionPrefValueMapFactory::~ExtensionPrefValueMapFactory() {
-}
-
-// static
-ExtensionPrefValueMap* ExtensionPrefValueMapFactory::GetForBrowserContext(
-    content::BrowserContext* context) {
-  return static_cast<ExtensionPrefValueMap*>(
-      GetInstance()->GetServiceForBrowserContext(context, true));
-}
-
-// static
-ExtensionPrefValueMapFactory* ExtensionPrefValueMapFactory::GetInstance() {
-  return Singleton<ExtensionPrefValueMapFactory>::get();
-}
-
-BrowserContextKeyedService*
-ExtensionPrefValueMapFactory::BuildServiceInstanceFor(
-    content::BrowserContext* context) const {
-  return new ExtensionPrefValueMap();
-}