Convert ProtocolHandlerRegistry to be a ProfileKeyedService.

chrome/browser/custom_handlers/protocol_handler_registry_factory.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/custom_handlers/protocol_handler_registry_factory.h"
+
+#include "base/memory/singleton.h"
+#include "chrome/browser/custom_handlers/protocol_handler_registry.h"
+#include "chrome/browser/extensions/extension_system_factory.h"
+#include "chrome/browser/profiles/profile.h"
+#include "chrome/browser/profiles/profile_dependency_manager.h"
+
+// static
+ProtocolHandlerRegistryFactory* ProtocolHandlerRegistryFactory::GetInstance() {
+  return Singleton<ProtocolHandlerRegistryFactory>::get();
+}
+
+// static
+ProtocolHandlerRegistry* ProtocolHandlerRegistryFactory::GetForProfile(
+    Profile* profile) {
+  return static_cast<ProtocolHandlerRegistry*>(
+      GetInstance()->GetServiceForProfile(profile, true));
+}
+
+ProtocolHandlerRegistryFactory::ProtocolHandlerRegistryFactory()
+    : ProfileKeyedServiceFactory("ProtocolHandlerRegistry",
+                                 ProfileDependencyManager::GetInstance()) {
+
+  // DependsOn(WebIntentsRegistryFactory::GetInstance());
+}
+
+ProtocolHandlerRegistryFactory::~ProtocolHandlerRegistryFactory() {
+}
+
+ProfileKeyedService* ProtocolHandlerRegistryFactory::BuildServiceInstanceFor(
+    Profile* profile) const {
+
+  ProtocolHandlerRegistry* registry = new ProtocolHandlerRegistry(
+      profile, new ProtocolHandlerRegistry::Delegate());
+
+  registry->InitProtocolSettings();
+
+  return registry;
+}