Move ExtensionSystem into extensions namespace

chrome/browser/extensions/extension_ui_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 "base/command_line.h"
 #include "base/json/json_file_value_serializer.h"
 #include "base/message_loop.h"
 #include "base/path_service.h"
 #include "base/string_util.h"
 #include "chrome/browser/extensions/extension_service.h"
@@ skipping 11 matching lines @@
 class ExtensionUITest : public testing::Test {
  public:
   ExtensionUITest() : ui_thread_(content::BrowserThread::UI, &message_loop_) {
   }
 
  protected:
   void SetUp() {
     // Create an ExtensionService and ManagementPolicy to inject into the
     // ExtensionSettingsHandler.
     TestExtensionSystem* system = static_cast<TestExtensionSystem*>(
-        ExtensionSystem::Get(&profile_));
+        extensions::ExtensionSystem::Get(&profile_));
     extension_service_ = system->CreateExtensionService(
         CommandLine::ForCurrentProcess(), FilePath(), false);
     management_policy_ = system->CreateManagementPolicy();
 
     handler_.reset(new ExtensionSettingsHandler(extension_service_,
                                                 management_policy_));
   }
 
   static DictionaryValue* DeserializeJSONTestData(const FilePath& path,
       std::string *error) {
@@ skipping 211 matching lines @@
 
   scoped_ptr<DictionaryValue> extension_details(
       CreateExtensionDetailViewFromPath(
           extension_path, pages, Extension::LOAD));
 
   FilePath::StringType ui_path;
 
   EXPECT_TRUE(extension_details->GetString("path", &ui_path));
   EXPECT_EQ(extension_path, FilePath(ui_path));
 }