Convert ExtensionRegistry to a BrowserContextKeyedService

extensions/browser/extension_registry.cc

 // 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 "extensions/browser/extension_registry.h"
 
+#include "extensions/browser/extension_registry_factory.h"
+
 namespace extensions {
 
 ExtensionRegistry::ExtensionRegistry() {}
 ExtensionRegistry::~ExtensionRegistry() {}
 
+// static
+ExtensionRegistry* ExtensionRegistry::Get(content::BrowserContext* context) {
+  return ExtensionRegistryFactory::GetForBrowserContext(context);
+}
+
 bool ExtensionRegistry::AddEnabled(
     const scoped_refptr<const Extension>& extension) {
   return enabled_extensions_.Insert(extension);
 }
 
 bool ExtensionRegistry::RemoveEnabled(const std::string& id) {
   return enabled_extensions_.Remove(id);
 }
 
 bool ExtensionRegistry::AddDisabled(
@@ skipping 28 matching lines @@
   disabled_extensions_.Clear();
   terminated_extensions_.Clear();
   blacklisted_extensions_.Clear();
 }
 
 void ExtensionRegistry::SetDisabledModificationCallback(
     const ExtensionSet::ModificationCallback& callback) {
   disabled_extensions_.set_modification_callback(callback);
 }
 
+void ExtensionRegistry::Shutdown() {
+  // Release references to all Extension objects in the sets.
+  ClearAll();
+}
+
 }  // namespace extensions