Profile shouldn't own PinnedTabService.

chrome/browser/tabs/pinned_tab_service_factory.cc

+// Copyright (c) 2011 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/tabs/pinned_tab_service_factory.h"
+
+#include "chrome/browser/tabs/pinned_tab_service.h"
+#include "chrome/browser/profiles/profile.h"
+#include "chrome/browser/profiles/profile_dependency_manager.h"
+
+// static
+PinnedTabService* PinnedTabServiceFactory::GetForProfile(
+    Profile* profile) {
+  return static_cast<PinnedTabService*>(
+      GetInstance()->GetServiceForProfile(profile));
+}
+
+PinnedTabServiceFactory* PinnedTabServiceFactory::GetInstance() {
+  return Singleton<PinnedTabServiceFactory>::get();
+}
+
+PinnedTabServiceFactory::PinnedTabServiceFactory()
+    : ProfileKeyedServiceFactory(ProfileDependencyManager::GetInstance()) {
+}
+
+PinnedTabServiceFactory::~PinnedTabServiceFactory() {
+}
+
+ProfileKeyedService* PinnedTabServiceFactory::BuildServiceInstanceFor(
+    Profile* profile) const {
+  return new PinnedTabService(profile);
+}