Create content\public\test\test_utils.h to hold common test classes that are used by unit and brows…

chrome/browser/printing/print_preview_tab_controller_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 "base/command_line.h"
 #include "chrome/browser/printing/print_preview_tab_controller.h"
 #include "chrome/browser/printing/print_view_manager.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_commands.h"
 #include "chrome/browser/ui/browser_tabstrip.h"
@@ skipping 101 matching lines @@
   TabContents* preview_tab =
     tab_controller->GetOrCreatePreviewTab(initiator_tab);
 
   // New print preview tab is created.
   EXPECT_EQ(1, browser()->tab_count());
   ASSERT_TRUE(preview_tab);
   ASSERT_NE(initiator_tab, preview_tab);
   TabDestroyedObserver tab_destroyed_observer(preview_tab->web_contents());
 
   // Reload the initiator tab.
-  ui_test_utils::WindowedNotificationObserver notification_observer(
+  content::WindowedNotificationObserver notification_observer(
       content::NOTIFICATION_LOAD_STOP,
       content::NotificationService::AllSources());
   chrome::Reload(browser(), CURRENT_TAB);
   notification_observer.Wait();
 
   ASSERT_TRUE(tab_destroyed_observer.tab_destroyed());
 
   // Get the print preview tab for initiator tab.
   initiator_tab->print_view_manager()->PrintPreviewNow();
   TabContents* new_preview_tab =
      tab_controller->GetOrCreatePreviewTab(initiator_tab);
 
   EXPECT_EQ(1, browser()->tab_count());
   EXPECT_TRUE(new_preview_tab);
 }