Remove notifications from PrintPreviewDialogController.

chrome/browser/printing/print_preview_dialog_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 "base/memory/scoped_ptr.h"
 #include "base/run_loop.h"
 #include "chrome/browser/printing/print_preview_dialog_controller.h"
 #include "chrome/browser/ui/browser.h"
 #include "chrome/browser/ui/browser_commands.h"
 #include "chrome/browser/ui/tabs/tab_strip_model.h"
 #include "chrome/common/chrome_switches.h"
 #include "chrome/common/print_messages.h"
 #include "chrome/common/url_constants.h"
 #include "chrome/test/base/in_process_browser_test.h"
 #include "chrome/test/base/ui_test_utils.h"
-#include "content/public/browser/notification_service.h"
-#include "content/public/browser/notification_types.h"
 #include "content/public/browser/web_contents_observer.h"
+#include "content/public/test/browser_test_utils.h"
 #include "url/gurl.h"
 #include "ipc/ipc_message_macros.h"
 
 using content::WebContents;
 using content::WebContentsObserver;
 
 class RequestPrintPreviewObserver : public WebContentsObserver {
  public:
   explicit RequestPrintPreviewObserver(WebContents* dialog)
       : WebContentsObserver(dialog) {
@@ skipping 172 matching lines @@
 
   WebContents* preview_dialog = GetPrintPreviewDialog();
 
   // Check a new print preview dialog got created.
   ASSERT_TRUE(preview_dialog);
   ASSERT_NE(initiator(), preview_dialog);
 
   // Reload the initiator. Make sure reloading destroys the print preview
   // dialog.
   PrintPreviewDialogDestroyedObserver dialog_destroyed_observer(preview_dialog);
-  content::WindowedNotificationObserver notification_observer(
-      content::NOTIFICATION_LOAD_STOP,
-      content::NotificationService::AllSources());
   chrome::Reload(browser(), CURRENT_TAB);
-  notification_observer.Wait();
+  content::WaitForLoadStop(
+      browser()->tab_strip_model()->GetActiveWebContents());
   ASSERT_TRUE(dialog_destroyed_observer.dialog_destroyed());
 
   // Try printing again.
   PrintPreview();
 
   // Create a preview dialog for the initiator tab.
   WebContents* new_preview_dialog = GetPrintPreviewDialog();
   EXPECT_TRUE(new_preview_dialog);
 }