Revert 229896 "Cache force-installed apps/extensions in device-l..."

trunk/src/chrome/browser/chromeos/extensions/device_local_account_external_policy_loader.cc

Index: trunk/src/chrome/browser/chromeos/extensions/device_local_account_external_policy_loader.cc
===================================================================
--- trunk/src/chrome/browser/chromeos/extensions/device_local_account_external_policy_loader.cc	(revision 229896)
+++ trunk/src/chrome/browser/chromeos/extensions/device_local_account_external_policy_loader.cc	(working copy)
@@ -1,114 +0,0 @@
-// Copyright 2013 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/chromeos/extensions/device_local_account_external_policy_loader.h"
-
-#include "base/callback.h"
-#include "base/logging.h"
-#include "base/prefs/pref_value_map.h"
-#include "base/values.h"
-#include "chrome/browser/browser_process.h"
-#include "chrome/browser/policy/configuration_policy_handler.h"
-#include "chrome/browser/policy/policy_map.h"
-#include "net/url_request/url_request_context_getter.h"
-
-namespace chromeos {
-
-namespace {
-
-// A dummy pref name under which policy::ExtensionInstallForcelistPolicyHandler
-// can store the parsed list of force-installed extensions.
-const char kExtensionInstallForcelist[] = "forcelist";
-
-}  // namespace
-
-DeviceLocalAccountExternalPolicyLoader::
-    DeviceLocalAccountExternalPolicyLoader(policy::CloudPolicyStore* store,
-                                           const base::FilePath& cache_dir)
-    : store_(store),
-      cache_dir_(cache_dir) {
-}
-
-bool DeviceLocalAccountExternalPolicyLoader::IsCacheRunning() const {
-  return external_cache_;
-}
-
-void DeviceLocalAccountExternalPolicyLoader::StartCache(
-    const scoped_refptr<base::SequencedTaskRunner>& cache_task_runner) {
-  DCHECK(!external_cache_);
-  store_->AddObserver(this);
-  external_cache_.reset(new ExternalCache(
-      cache_dir_,
-      g_browser_process->system_request_context(),
-      cache_task_runner,
-      this,
-      true  /* always_check_updates */,
-      false  /* wait_for_cache_initialization */));
-
-  if (store_->is_initialized())
-    UpdateExtensionListFromStore();
-}
-
-void DeviceLocalAccountExternalPolicyLoader::StopCache(
-    const base::Closure& callback) {
-  if (external_cache_) {
-    external_cache_->Shutdown(callback);
-    external_cache_.reset();
-    store_->RemoveObserver(this);
-  }
-
-  base::DictionaryValue empty_prefs;
-  OnExtensionListsUpdated(&empty_prefs);
-}
-
-void DeviceLocalAccountExternalPolicyLoader::StartLoading() {
-  if (prefs_)
-    LoadFinished();
-}
-
-void DeviceLocalAccountExternalPolicyLoader::OnStoreLoaded(
-    policy::CloudPolicyStore* store) {
-  DCHECK(external_cache_);
-  DCHECK_EQ(store_, store);
-  UpdateExtensionListFromStore();
-}
-
-void DeviceLocalAccountExternalPolicyLoader::OnStoreError(
-    policy::CloudPolicyStore* store) {
-  DCHECK(external_cache_);
-  DCHECK_EQ(store_, store);
-}
-
-void DeviceLocalAccountExternalPolicyLoader::OnExtensionListsUpdated(
-    const base::DictionaryValue* prefs) {
-  DCHECK(external_cache_ || prefs->empty());
-  prefs_.reset(prefs->DeepCopy());
-  LoadFinished();
-}
-
-DeviceLocalAccountExternalPolicyLoader::
-    ~DeviceLocalAccountExternalPolicyLoader() {
-  DCHECK(!external_cache_);
-}
-
-void DeviceLocalAccountExternalPolicyLoader::UpdateExtensionListFromStore() {
-  scoped_ptr<base::DictionaryValue> prefs(new base::DictionaryValue);
-  const policy::PolicyMap& policy_map = store_->policy_map();
-  policy::ExtensionInstallForcelistPolicyHandler
-      policy_handler(kExtensionInstallForcelist);
-  if (policy_handler.CheckPolicySettings(policy_map, NULL)) {
-    PrefValueMap pref_value_map;
-    policy_handler.ApplyPolicySettings(policy_map, &pref_value_map);
-    const base::Value* value = NULL;
-    const base::DictionaryValue* dict = NULL;
-    if (pref_value_map.GetValue(kExtensionInstallForcelist, &value) &&
-        value->GetAsDictionary(&dict)) {
-      prefs.reset(dict->DeepCopy());
-    }
-  }
-
-  external_cache_->UpdateExtensionsList(prefs.Pass());
-}
-
-}  // namespace chromeos