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()) {
+}
+
+ProtocolHandlerRegistryFactory::~ProtocolHandlerRegistryFactory() {
+}
+
+// Will be created when initializing profile_io_data, so we might
+// as well have the framework create this along with other
+// PKSs to preserve orderly civic conduct :)
+bool ProtocolHandlerRegistryFactory::ServiceIsCreatedWithProfile() {
+  return true;
+}
+
+// Allows the produced registry to be used in incognito mode.
+bool ProtocolHandlerRegistryFactory::ServiceRedirectedInIncognito() {
+  return true;
+}
+
+// Do not create this service for tests. MANY tests will fail
+// due to the threading requirements of this service. ALSO,
+// not creating this increases test isolation (which is GOOD!)
+bool ProtocolHandlerRegistryFactory::ServiceIsNULLWhileTesting() {
+  return true;
+}
+
+ProfileKeyedService* ProtocolHandlerRegistryFactory::BuildServiceInstanceFor(
+    Profile* profile) const {
+
+  ProtocolHandlerRegistry* registry = new ProtocolHandlerRegistry(
+      profile, new ProtocolHandlerRegistry::Delegate());
+
+  registry->InitProtocolSettings();
+

[benwells, 2012/06/22 23:31:27]

nit: remove some blank lines.

[Steve McKay, 2012/06/27 21:56:45]

Done.

+  return registry;
+}