Make MockExtensionSystemFactory available in all ExtensionsTests.

extensions/browser/api_unittest.h

 // Copyright 2014 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 EXTENSIONS_BROWSER_API_UNITTEST_H_
 #define EXTENSIONS_BROWSER_API_UNITTEST_H_
 
 #include <string>
 
 #include "base/memory/ref_counted.h"
 #include "base/memory/scoped_ptr.h"
 #include "base/prefs/testing_pref_service.h"
 #include "extensions/browser/extensions_test.h"
-#include "extensions/browser/mock_extension_system.h"
 
 namespace base {
 class Value;
 class DictionaryValue;
 class ListValue;
 }
 
 namespace content {
 class NotificationService;
 class TestBrowserThreadBundle;
@@ skipping 60 matching lines @@
   // Run the function and ignore any result.
   void RunFunction(UIThreadExtensionFunction* function,
                    const std::string& args);
 
  private:
   scoped_ptr<content::NotificationService> notification_service_;
 
   scoped_ptr<content::TestBrowserThreadBundle> thread_bundle_;
   TestingPrefServiceSimple testing_pref_service_;
 
-  MockExtensionSystemFactory<MockExtensionSystem> extension_system_factory_;
-
   // The WebContents used to associate a RenderViewHost with API function calls,
   // or null.
   scoped_ptr<content::WebContents> contents_;
 
   // The Extension used when running API function calls.
   scoped_refptr<Extension> extension_;
 };
 
 }  // namespace extensions
 
 #endif  // EXTENSIONS_BROWSER_API_UNITTEST_H_