RulesRegistry for declarative APIs.

chrome/browser/extensions/api/declarative/rules_registry_service.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/api/declarative/rules_registry_service.h"
+
+#include "base/logging.h"
+#include "chrome/browser/extensions/api/declarative/initializing_rules_registry.h"
+
+namespace extensions {
+
+RulesRegistryService::RulesRegistryService() {}
+
+RulesRegistryService::~RulesRegistryService() {}
+
+void RulesRegistryService::RegisterRulesRegistry(
+    const std::string& event_name,
+    scoped_ptr<RulesRegistry> rule_registry) {
+  DCHECK(rule_registries_.find(event_name) == rule_registries_.end());
+  rule_registries_[event_name] =
+      make_linked_ptr(new InitializingRulesRegistry(rule_registry.Pass()));
+}
+
+RulesRegistry* RulesRegistryService::GetRulesRegistry(
+    const std::string& event_name) const {
+  RulesRegistryMap::const_iterator i = rule_registries_.find(event_name);
+  if (i == rule_registries_.end()) {
+    NOTREACHED();

[not at google - send to devlin, 2012/02/07 23:54:57]

it seems like this NOTREACHED() check should be pushed up to the API level; only
the API knows that this will never be called with an unknown event name (due to
the way the events are set up).

[battre, 2012/02/08 12:49:54]

Done.

+    return NULL;
+  }
+  return i->second.get();
+}
+
+void RulesRegistryService::OnExtensionUnloaded(
+    const std::string& extension_id) {
+  RulesRegistryMap::iterator i;
+  for (i = rule_registries_.begin(); i != rule_registries_.end(); ++i)
+    i->second->OnExtensionUnloaded(extension_id);
+}
+
+}  // namespace extensions