Pref service: delete old implementation

services/preferences/public/cpp/pref_client_store.cc

-// Copyright 2016 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 "services/preferences/public/cpp/pref_client_store.h"
-
-#include "base/memory/ptr_util.h"
-#include "base/values.h"
-#include "services/service_manager/public/cpp/connector.h"
-
-namespace preferences {
-
-PrefClientStore::PrefClientStore(
-    prefs::mojom::PreferencesServiceFactoryPtr pref_factory_ptr)
-    : prefs_binding_(this),
-      pref_factory_ptr_(std::move(pref_factory_ptr)),
-      initialized_(false) {
-  pref_factory_ptr_->Create(prefs_binding_.CreateInterfacePtrAndBind(),
-                            mojo::MakeRequest(&prefs_service_ptr_));
-}
-
-void PrefClientStore::Subscribe(const std::set<std::string>& keys) {
-  keys_.insert(keys.begin(), keys.end());
-
-  std::vector<std::string> pref_array;
-  std::copy(keys_.begin(), keys_.end(), std::back_inserter(pref_array));
-  prefs_service_ptr_->Subscribe(pref_array);
-}
-
-bool PrefClientStore::GetValue(const std::string& key,
-                               const base::Value** value) const {
-  DCHECK(initialized_);
-  DCHECK(keys_.find(key) != keys_.end());
-
-  return ValueMapPrefStore::GetValue(key, value);
-}
-
-void PrefClientStore::SetValue(const std::string& key,
-                               std::unique_ptr<base::Value> value,
-                               uint32_t flags) {
-  DCHECK(keys_.find(key) != keys_.end());
-
-  // TODO(jonross): only notify the server if the value changed.
-  SetValueOnPreferenceManager(key, *value);
-  ValueMapPrefStore::SetValue(key, std::move(value), flags);
-}
-
-void PrefClientStore::RemoveValue(const std::string& key, uint32_t flags) {
-  // TODO(jonross): add preference removal to preferences.mojom
-  NOTIMPLEMENTED();
-}
-
-bool PrefClientStore::GetMutableValue(const std::string& key,
-                                      base::Value** value) {
-  DCHECK(initialized_);
-  DCHECK(keys_.find(key) != keys_.end());
-
-  return ValueMapPrefStore::GetMutableValue(key, value);
-}
-
-void PrefClientStore::ReportValueChanged(const std::string& key,
-                                         uint32_t flags) {
-  DCHECK(keys_.find(key) != keys_.end());
-  const base::Value* value = nullptr;
-  ValueMapPrefStore::GetValue(key, &value);
-  SetValueOnPreferenceManager(key, *value);
-  ValueMapPrefStore::ReportValueChanged(key, flags);
-}
-
-void PrefClientStore::SetValueSilently(const std::string& key,
-                                       std::unique_ptr<base::Value> value,
-                                       uint32_t flags) {
-  SetValueOnPreferenceManager(key, *value);
-  ValueMapPrefStore::SetValueSilently(key, std::move(value), flags);
-}
-
-PrefClientStore::~PrefClientStore() {}
-
-void PrefClientStore::SetValueOnPreferenceManager(const std::string& key,
-                                                  const base::Value& value) {
-  if (keys_.find(key) == keys_.end())
-    return;
-
-  auto prefs = base::MakeUnique<base::DictionaryValue>();
-  prefs->SetWithoutPathExpansion(key, value.CreateDeepCopy());
-  prefs_service_ptr_->SetPreferences(std::move(prefs));
-}
-
-void PrefClientStore::OnPreferencesChanged(
-    std::unique_ptr<base::DictionaryValue> preferences) {
-  if (!initialized_) {
-    initialized_ = true;
-    NotifyInitializationCompleted();
-  }
-
-  for (base::DictionaryValue::Iterator it(*preferences); !it.IsAtEnd();
-       it.Advance()) {
-    if (keys_.find(it.key()) == keys_.end())
-      continue;
-    ValueMapPrefStore::SetValue(it.key(), it.value().CreateDeepCopy(), 0);
-  }
-}
-
-}  // namespace preferences