Cleanup: Remove unused blink::WebTextDirection parameter from Notification ctor.

chrome/browser/notifications/extension_welcome_notification_unittest.cc

 // Copyright 2014 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/browser/notifications/extension_welcome_notification.h"
 
 #include <string>
 
 #include "base/memory/scoped_ptr.h"
 #include "base/message_loop/message_loop.h"
@@ skipping 206 matching lines @@
 
   void ShowNotification(std::string notification_id,
                         const message_center::NotifierId& notifier_id) const {
     message_center::RichNotificationData rich_notification_data;
     rich_notification_data.priority = 0;
     Notification notification(message_center::NOTIFICATION_TYPE_BASE_FORMAT,
                               GURL("http://tests.url"),
                               base::UTF8ToUTF16("Title"),
                               base::UTF8ToUTF16("Body"),
                               gfx::Image(),
-                              blink::WebTextDirectionDefault,
                               notifier_id,
                               base::UTF8ToUTF16("Source"),
                               base::UTF8ToUTF16(notification_id),
                               rich_notification_data,
                               new TestNotificationDelegate("TestNotification"));
     welcome_notification_->ShowWelcomeNotificationIfNecessary(notification);
   }
 
   scoped_refptr<base::TestSimpleTaskRunner> task_runner_;
   scoped_ptr<base::ThreadTaskRunnerHandle> thread_task_runner_handle_;
@@ skipping 289 matching lines @@
 
   EXPECT_TRUE(task_runner()->GetPendingTasks().empty());
   EXPECT_EQ(message_center()->add_notification_calls(), 0);
   EXPECT_EQ(message_center()->remove_notification_calls(), 0);
   EXPECT_EQ(message_center()->notifications_with_shown_as_popup(), 0);
   EXPECT_FALSE(GetBooleanPref(prefs::kWelcomeNotificationDismissed));
   EXPECT_TRUE(GetBooleanPref(prefs::kWelcomeNotificationDismissedLocal));
   EXPECT_TRUE(GetBooleanPref(prefs::kWelcomeNotificationPreviouslyPoppedUp));
   EXPECT_EQ(GetInt64Pref(prefs::kWelcomeNotificationExpirationTimestamp), 1);
 }