Move ExtensionPrefs and friends to extensions/ directory.

chrome/browser/extensions/extension_pref_store.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_store.h"
-
-#include "base/values.h"
-#include "chrome/browser/extensions/extension_pref_value_map.h"
-
-ExtensionPrefStore::ExtensionPrefStore(
-    ExtensionPrefValueMap* extension_pref_value_map,
-    bool incognito_pref_store)
-    : extension_pref_value_map_(extension_pref_value_map),
-      incognito_pref_store_(incognito_pref_store) {
-  extension_pref_value_map_->AddObserver(this);
-}
-
-void ExtensionPrefStore::OnInitializationCompleted() {
-  NotifyInitializationCompleted();
-}
-
-void ExtensionPrefStore::OnPrefValueChanged(const std::string& key) {
-  CHECK(extension_pref_value_map_);
-  const base::Value *winner =
-      extension_pref_value_map_->GetEffectivePrefValue(key,
-                                                       incognito_pref_store_,
-                                                       NULL);
-  if (winner)
-    SetValue(key, winner->DeepCopy());
-  else
-    RemoveValue(key);
-}
-
-void ExtensionPrefStore::OnExtensionPrefValueMapDestruction() {
-  CHECK(extension_pref_value_map_);
-  extension_pref_value_map_->RemoveObserver(this);
-  extension_pref_value_map_ = NULL;
-}
-
-ExtensionPrefStore::~ExtensionPrefStore() {
-  if (extension_pref_value_map_)
-    extension_pref_value_map_->RemoveObserver(this);
-}