Profile shouldn't own PinnedTabService.

chrome/browser/tabs/pinned_tab_service_factory.h

+// 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.
+
+#ifndef CHROME_BROWSER_TABS_PINNED_TAB_SERVICE_FACTORY_H_
+#define CHROME_BROWSER_TABS_PINNED_TAB_SERVICE_FACTORY_H_
+
+#include "base/compiler_specific.h"
+#include "base/memory/singleton.h"
+#include "chrome/browser/profiles/profile_keyed_service_factory.h"
+
+class PinnedTabService;
+class Profile;
+
+// Singleton that owns all PinnedTabServices and associates them with Profiles.
+// Listens for the Profile's destruction notification and cleans up the
+// associated PinnedTabService.
+class PinnedTabServiceFactory : public ProfileKeyedServiceFactory {
+ public:
+  // Returns the PinnedTabService that tracks pinning changes for |profile|.
+  static PinnedTabService* GetForProfile(Profile* profile);
+
+  static PinnedTabServiceFactory* GetInstance();
+
+ private:
+  friend struct DefaultSingletonTraits<PinnedTabServiceFactory>;
+
+  PinnedTabServiceFactory();
+  virtual ~PinnedTabServiceFactory();
+
+  // ProfileKeyedServiceFactory:
+  virtual ProfileKeyedService* BuildServiceInstanceFor(
+      Profile* profile) const OVERRIDE;
+};
+
+#endif  // CHROME_BROWSER_TABS_PINNED_TAB_SERVICE_FACTORY_H_