Improve spelling of "notification".

ash/system/web_notification/web_notification_tray_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 "ash/system/web_notification/web_notification_tray.h"
 
 #include <vector>
 
 #include "ash/display/display_manager.h"
 #include "ash/root_window_controller.h"
@@ skipping 314 matching lines @@
   // visible.
   GetSystemTray()->ShowDefaultView(BUBBLE_CREATE_NEW);
   EXPECT_TRUE(GetTray()->IsPopupVisible());
   gfx::Rect work_area_with_tray = GetPopupWorkArea();
   EXPECT_GT(work_area.size().GetArea(), work_area_with_tray.size().GetArea());
 
   // System tray notification is also created, the popup's work area is narrowed
   // even more, but still visible.
   GetSystemTray()->ShowNotificationView(test_item);
   EXPECT_TRUE(GetTray()->IsPopupVisible());
-  gfx::Rect work_area_with_tray_notificaiton = GetPopupWorkArea();
+  gfx::Rect work_area_with_tray_notification = GetPopupWorkArea();
   EXPECT_GT(work_area.size().GetArea(),
-            work_area_with_tray_notificaiton.size().GetArea());
+            work_area_with_tray_notification.size().GetArea());
   EXPECT_GT(work_area_with_tray.size().GetArea(),
-            work_area_with_tray_notificaiton.size().GetArea());
+            work_area_with_tray_notification.size().GetArea());
 
   // Close system tray, only system tray notifications.
   GetSystemTray()->ClickedOutsideBubble();
   EXPECT_TRUE(GetTray()->IsPopupVisible());
   gfx::Rect work_area_with_notification = GetPopupWorkArea();
   EXPECT_GT(work_area.size().GetArea(),
             work_area_with_notification.size().GetArea());
-  EXPECT_LT(work_area_with_tray_notificaiton.size().GetArea(),
+  EXPECT_LT(work_area_with_tray_notification.size().GetArea(),
             work_area_with_notification.size().GetArea());
 
   // Close the system tray notifications.
   GetSystemTray()->HideNotificationView(test_item);
   EXPECT_TRUE(GetTray()->IsPopupVisible());
   EXPECT_EQ(work_area.ToString(), GetPopupWorkArea().ToString());
 }
 
 TEST_F(WebNotificationTrayTest, MAYBE_PopupAndAutoHideShelf) {
   AddNotification("test_id");
@@ skipping 111 matching lines @@
 
   // System tray is created on the primary display. The popups in the secondary
   // tray aren't affected.
   GetSystemTray()->ShowDefaultView(BUBBLE_CREATE_NEW);
   EXPECT_GT(work_area.size().GetArea(), GetPopupWorkArea().size().GetArea());
   EXPECT_EQ(work_area_second.ToString(),
             GetPopupWorkAreaForTray(GetSecondaryTray()).ToString());
 }
 
 }  // namespace ash