Make ShortcutsBackend a ProfileKeyedService.

chrome/browser/history/shortcuts_backend_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/history/shortcuts_backend_factory.h"
+
+#include "chrome/browser/history/shortcuts_backend.h"
+#include "chrome/browser/prefs/pref_service.h"
+#include "chrome/browser/profiles/profile_dependency_manager.h"
+#include "chrome/common/pref_names.h"
+
+using history::ShortcutsBackend;
+
+// static
+scoped_refptr<ShortcutsBackend> ShortcutsBackendFactory::GetForProfile(
+    Profile* profile) {
+  return static_cast<ShortcutsBackend*>(
+      GetInstance()->GetServiceForProfile(profile, true).get());
+}
+
+// static
+scoped_refptr<ShortcutsBackend> ShortcutsBackendFactory::GetForProfileIfExists(
+    Profile* profile) {
+  return static_cast<ShortcutsBackend*>(
+      GetInstance()->GetServiceForProfile(profile, false).get());
+}
+
+// static
+ShortcutsBackendFactory* ShortcutsBackendFactory::GetInstance() {
+  return Singleton<ShortcutsBackendFactory>::get();
+}
+
+// static
+scoped_refptr<RefcountedProfileKeyedService>
+ShortcutsBackendFactory::GetForProfileForTesting(Profile* profile) {
+  scoped_refptr<history::ShortcutsBackend> backend(
+      new ShortcutsBackend(profile, false));
+  if (backend->Init())
+    return backend;
+  return NULL;
+}
+
+scoped_refptr<RefcountedProfileKeyedService>
+ShortcutsBackendFactory::GetForProfileNoDatabaseForTesting(Profile* profile) {
+  scoped_refptr<history::ShortcutsBackend> backend(
+      new ShortcutsBackend(profile, true));
+  if (backend->Init())
+    return backend;
+  return NULL;
+}
+
+ShortcutsBackendFactory::ShortcutsBackendFactory()
+    : RefcountedProfileKeyedServiceFactory(
+        "ShortcutsBackend",
+        ProfileDependencyManager::GetInstance()) {
+}
+
+ShortcutsBackendFactory::~ShortcutsBackendFactory() {}
+
+scoped_refptr<RefcountedProfileKeyedService>
+ShortcutsBackendFactory::BuildServiceInstanceFor(Profile* profile) const {
+  scoped_refptr<history::ShortcutsBackend> backend(
+      new ShortcutsBackend(profile, false));
+  if (backend->Init())
+    return backend;
+  return NULL;
+}
+
+bool ShortcutsBackendFactory::ServiceIsNULLWhileTesting() {
+  return true;
+}