Move small c/b/extensions classes into extensions namespace no.2

chrome/browser/extensions/platform_app_browsertest.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 "chrome/app/chrome_command_ids.h"
 #include "chrome/browser/automation/automation_util.h"
 #include "chrome/browser/tab_contents/render_view_context_menu.h"
 #include "chrome/browser/extensions/extension_test_message_listener.h"
 #include "chrome/browser/extensions/platform_app_browsertest_util.h"
 #include "chrome/browser/extensions/shell_window_registry.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_tabstrip.h"
 #include "chrome/browser/ui/extensions/application_launch.h"
 #include "chrome/browser/ui/extensions/shell_window.h"
 #include "chrome/common/chrome_notification_types.h"
 #include "chrome/test/base/ui_test_utils.h"
 #include "content/public/browser/render_process_host.h"
 
 using content::WebContents;
-using extensions::Extension;
+
+namespace extensions {
 
 namespace {
 // Non-abstract RenderViewContextMenu class.
 class PlatformAppContextMenu : public RenderViewContextMenu {
  public:
   PlatformAppContextMenu(WebContents* web_contents,
                          const content::ContextMenuParams& params)
       : RenderViewContextMenu(web_contents, params) {}
 
   bool HasCommandWithId(int command_id) {
@@ skipping 184 matching lines @@
   // Setup the command line
   ClearCommandLineArgs();
   CommandLine* command_line = CommandLine::ForCurrentProcess();
   FilePath relative_test_doc = FilePath::FromUTF8Unsafe(
       "platform_apps/launch_files/test.txt");
   relative_test_doc = relative_test_doc.NormalizePathSeparators();
   command_line->AppendArgPath(relative_test_doc);
 
   // Load the extension
   ResultCatcher catcher;
-  const extensions::Extension* extension = LoadExtension(
+  const Extension* extension = LoadExtension(
       test_data_dir_.AppendASCII("platform_apps/launch_file"));
   ASSERT_TRUE(extension);
 
   // Run the test
   application_launch::LaunchParams params(browser()->profile(), extension,
                                           extension_misc::LAUNCH_NONE,
                                           NEW_WINDOW);
   params.command_line = CommandLine::ForCurrentProcess();
   params.current_directory = test_data_dir_;
   application_launch::OpenApplication(params);
@@ skipping 70 matching lines @@
 
 IN_PROC_BROWSER_TEST_F(PlatformAppBrowserTest, OpenLink) {
   ASSERT_TRUE(StartTestServer());
   content::WindowedNotificationObserver observer(
       chrome::NOTIFICATION_TAB_ADDED,
       content::Source<content::WebContentsDelegate>(browser()));
   LoadAndLaunchPlatformApp("open_link");
   observer.Wait();
   ASSERT_EQ(2, browser()->tab_count());
 }
+
+}  // namespace extensions