Extract a MockExtensionSystem to be used with TestExtensionsBrowserClient.

chrome/browser/extensions/menu_manager_unittest.cc

 // 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.
 
 #include <vector>
 
 #include "base/files/scoped_temp_dir.h"
 #include "base/json/json_reader.h"
 #include "base/memory/scoped_vector.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 435 matching lines @@
   registry->TriggerOnUnloaded(extension1,
                               UnloadedExtensionInfo::REASON_DISABLE);
 
   ASSERT_EQ(NULL, manager_.MenuItems(MenuItem::ExtensionKey(extension1->id())));
   ASSERT_EQ(
       1u, manager_.MenuItems(MenuItem::ExtensionKey(extension2->id()))->size());
   ASSERT_TRUE(manager_.GetItemById(id1) == NULL);
   ASSERT_TRUE(manager_.GetItemById(item2->id()) != NULL);
 }
 
+namespace {
+
 // A mock message service for tests of MenuManager::ExecuteCommand.
 class MockEventRouter : public EventRouter {
  public:
   explicit MockEventRouter(Profile* profile) : EventRouter(profile, NULL) {}
 
   MOCK_METHOD6(DispatchEventToExtensionMock,
                void(const std::string& extension_id,
                     const std::string& event_name,
                     base::ListValue* event_args,
                     content::BrowserContext* source_context,
@@ skipping 29 matching lines @@
  private:
   scoped_ptr<MockEventRouter> mock_event_router_;
 
   DISALLOW_COPY_AND_ASSIGN(MockExtensionSystem);
 };
 
 KeyedService* BuildMockExtensionSystem(content::BrowserContext* profile) {
   return new MockExtensionSystem(static_cast<Profile*>(profile));
 }
 
+}  // namespace
+
 // Tests the RemoveAll functionality.
 TEST_F(MenuManagerTest, RemoveAll) {
   // Try removing all items for an extension id that doesn't have any items.
   manager_.RemoveAllContextItems(MenuItem::ExtensionKey("CCCC"));
 
   // Add 2 top-level and one child item for extension 1.
   Extension* extension1 = AddExtension("1111");
   MenuItem* item1 = CreateTestItem(extension1);
   MenuItem* item2 = CreateTestItem(extension1);
   MenuItem* item3 = CreateTestItem(extension1);
@@ skipping 244 matching lines @@
   EXPECT_EQ(4u, manager_.MenuItems(key1)->size());
   EXPECT_EQ(1u, manager_.MenuItems(key2)->size());
 
   // Remove all context menu items with incognito true.
   manager_.RemoveAllIncognitoContextItems();
   EXPECT_EQ(2u, manager_.MenuItems(key1)->size());
   EXPECT_EQ(1u, manager_.MenuItems(key2)->size());
 }
 
 }  // namespace extensions