Take extensions out of Profile into a profile-keyed service, ExtensionSystem.

chrome/browser/extensions/test_extension_system.h

+// 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.
+
+#ifndef CHROME_BROWSER_EXTENSIONS_TEST_EXTENSION_SYSTEM_H_
+#define CHROME_BROWSER_EXTENSIONS_TEST_EXTENSION_SYSTEM_H_
+#pragma once
+
+#include "chrome/browser/extensions/extension_system.h"
+
+class CommandLine;
+class FilePath;
+
+// Test ExtensionSystem, for use with TestingProfile.
+class TestExtensionSystem : public ExtensionSystem {
+ public:
+  explicit TestExtensionSystem(Profile* profile);
+  virtual ~TestExtensionSystem();
+
+  // ProfileKeyedService implementation.
+  virtual void Shutdown() OVERRIDE;
+
+  // Creates an ExtensionService initialized with the testing profile and
+  // returns it.
+  ExtensionService* CreateExtensionService(const CommandLine* command_line,
+                                           const FilePath& install_directory,
+                                           bool autoupdate_enabled);
+
+  // Creates an ExtensionProcessManager. If not invoked, the
+  // ExtensionProcessManager is NULL.
+  void CreateExtensionProcessManager();
+
+  virtual void Init(bool extensions_enabled) OVERRIDE {}
+  virtual ExtensionService* extension_service() OVERRIDE;
+  void SetExtensionService(ExtensionService* service);
+  virtual UserScriptMaster* user_script_master() OVERRIDE;
+  virtual ExtensionDevToolsManager* devtools_manager() OVERRIDE;
+  virtual ExtensionProcessManager* process_manager() OVERRIDE;
+  virtual ExtensionInfoMap* info_map() OVERRIDE;
+  virtual ExtensionMessageService* message_service() OVERRIDE;
+  virtual ExtensionEventRouter* event_router() OVERRIDE;
+
+  // Factory method for tests to use with SetTestingProfile.
+  static ProfileKeyedBase* Build(Profile* profile);
+
+ private:
+  Profile* profile_;
+
+  scoped_ptr<ExtensionPrefValueMap> extension_pref_value_map_;
+  // The Extension Preferences. Only created if CreateExtensionService is
+  // invoked.
+  scoped_ptr<ExtensionPrefs> extension_prefs_;
+  scoped_ptr<ExtensionService> extension_service_;
+  scoped_ptr<ExtensionProcessManager> extension_process_manager_;
+};
+
+#endif  // CHROME_BROWSER_EXTENSIONS_TEST_EXTENSION_SYSTEM_H_