New policy protobuf protocol.

chrome/browser/policy/policy_map.cc

+// Copyright (c) 2011 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/policy/policy_map.h"
+
+#include <algorithm>
+
+#include "base/stl_util-inl.h"
+
+namespace policy {
+
+PolicyMap::PolicyMap() {
+}
+
+PolicyMap::~PolicyMap() {
+  Clear();
+}
+
+const Value* PolicyMap::Get(ConfigurationPolicyType policy) const {
+  PolicyMapType::const_iterator entry = map_.find(policy);
+  return entry == map_.end() ? NULL : entry->second;
+}
+
+void PolicyMap::Set(ConfigurationPolicyType policy, Value* value) {
+  std::swap(map_[policy], value);
+  delete value;
+}
+
+void PolicyMap::Erase(ConfigurationPolicyType policy) {
+  const const_iterator entry = map_.find(policy);
+  if (entry != map_.end()) {
+    delete entry->second;
+    map_.erase(entry->first);
+  }
+}
+
+void PolicyMap::Swap(PolicyMap* other) {
+  map_.swap(other->map_);
+}
+
+bool PolicyMap::Equals(const PolicyMap& other) const {
+  return other.map_.size() == map_.size() &&
+      std::equal(map_.begin(), map_.end(), other.map_.begin(), MapEntryEquals);
+}
+
+bool PolicyMap::empty() const {
+  return map_.empty();
+}
+
+size_t PolicyMap::size() const {
+  return map_.size();
+}
+
+PolicyMap::const_iterator PolicyMap::begin() const {
+  return map_.begin();
+}
+
+PolicyMap::const_iterator PolicyMap::end() const {
+  return map_.end();
+}
+
+void PolicyMap::Clear() {
+  STLDeleteValues(&map_);
+}
+
+// static
+bool PolicyMap::MapEntryEquals(const PolicyMap::PolicyMapType::value_type& a,
+                               const PolicyMap::PolicyMapType::value_type& b) {
+  return a.first == b.first && Value::Equals(a.second, b.second);
+}
+
+}  // namespace policy