Move preference MACs to the protected preference stores.

chrome/browser/prefs/dictionary_pref_store.cc

+// Copyright 2014 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/prefs/dictionary_pref_store.h"
+
+#include "base/values.h"
+
+DictionaryPrefStore::DictionaryPrefStore(base::DictionaryValue* dictionary)
+    : dictionary_(dictionary) {
+}
+
+bool DictionaryPrefStore::GetValue(const std::string& key,
+                                   const base::Value** result) const {
+  return dictionary_->Get(key, result);
+}
+
+void DictionaryPrefStore::AddObserver(PrefStore::Observer* observer) {
+  observers_.AddObserver(observer);
+}
+
+void DictionaryPrefStore::RemoveObserver(PrefStore::Observer* observer) {
+  observers_.RemoveObserver(observer);
+}
+
+bool DictionaryPrefStore::HasObservers() const {
+  return observers_.might_have_observers();
+}
+
+void DictionaryPrefStore::SetValue(const std::string& key, base::Value* value) {
+  dictionary_->Set(key, value);
+  ReportValueChanged(key);
+}
+
+void DictionaryPrefStore::RemoveValue(const std::string& key) {
+  dictionary_->Remove(key, NULL);
+  ReportValueChanged(key);
+}
+
+bool DictionaryPrefStore::GetMutableValue(const std::string& key,
+                                          base::Value** result) {
+  return dictionary_->Get(key, result);
+}
+
+void DictionaryPrefStore::ReportValueChanged(const std::string& key) {
+  FOR_EACH_OBSERVER(Observer, observers_, OnPrefValueChanged(key));
+}
+
+DictionaryPrefStore::~DictionaryPrefStore() {
+}