Moved the AppNotification system into extensions namespace

chrome/browser/extensions/app_notification_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 "base/bind.h"
 #include "base/message_loop.h"
 #include "chrome/browser/extensions/app_notification_manager.h"
 #include "chrome/browser/extensions/app_notification_test_util.h"
 #include "chrome/common/chrome_notification_types.h"
 #include "chrome/common/extensions/extension.h"
 #include "chrome/common/extensions/extension_manifest_constants.h"
 #include "chrome/common/extensions/extension_test_util.h"
 #include "chrome/test/base/testing_profile.h"
 #include "content/public/browser/notification_details.h"
 #include "content/public/browser/notification_service.h"
 #include "content/public/browser/notification_source.h"
 #include "content/public/test/test_browser_thread.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 using content::BrowserThread;
-using extensions::Extension;
 
 namespace util = app_notification_test_util;
 
+namespace extensions {
+
 class AppNotificationManagerTest : public testing::Test {
  public:
   AppNotificationManagerTest()
       : ui_thread_(BrowserThread::UI, &ui_loop_),
         file_thread_(BrowserThread::FILE) {}
 
   ~AppNotificationManagerTest() {}
 
   virtual void SetUp() OVERRIDE {
     ASSERT_TRUE(BrowserThread::CurrentlyOn(BrowserThread::UI));
@@ skipping 85 matching lines @@
   content::NotificationService::current()->Notify(
       chrome::NOTIFICATION_EXTENSION_UNINSTALLED,
       content::Source<Profile>(profile_.get()),
       content::Details<const Extension>(extension1.get()));
 
   // The id1 items should be gone but the id2 items should still be there.
   EXPECT_EQ(NULL, mgr_->GetLast(id1));
   EXPECT_EQ(NULL, mgr_->GetAll(id1));
   util::ExpectListsEqual(list2, *mgr_->GetAll(id2));
 }
+
+}  // namespace extensions