Remove ExtensionToolbarModel from ExtensionService.

chrome/browser/extensions/extension_toolbar_model_factory.h

+// Copyright 2013 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_EXTENSIONS_EXTENSION_TOOLBAR_MODEL_FACTORY_H_
+#define CHROME_BROWSER_EXTENSIONS_EXTENSION_TOOLBAR_MODEL_FACTORY_H_
+
+#include "base/memory/scoped_ptr.h"
+#include "base/memory/singleton.h"
+#include "components/browser_context_keyed_service/browser_context_keyed_service_factory.h"
+
+class ExtensionToolbarModel;
+class Profile;
+
+class ExtensionToolbarModelFactory : public BrowserContextKeyedServiceFactory {
+ public:
+  static ExtensionToolbarModel* GetForProfile(Profile* profile);
+
+  static ExtensionToolbarModelFactory* GetInstance();
+
+ private:
+  friend struct DefaultSingletonTraits<ExtensionToolbarModelFactory>;
+
+  ExtensionToolbarModelFactory();
+  virtual ~ExtensionToolbarModelFactory();
+
+  virtual BrowserContextKeyedService* BuildServiceInstanceFor(
+      content::BrowserContext* profile) const OVERRIDE;
+  virtual content::BrowserContext* GetBrowserContextToUse(
+      content::BrowserContext* context) const OVERRIDE;
+  virtual bool ServiceIsCreatedWithBrowserContext() const OVERRIDE;
+  virtual bool ServiceIsNULLWhileTesting() const OVERRIDE;
+};
+
+#endif  // CHROME_BROWSER_EXTENSIONS_EXTENSION_TOOLBAR_MODEL_FACTORY_H_