Remove Notifications Associated with an Extension When the Extension is Unchecked from the Message …

ui/message_center/cocoa/tray_view_controller_unittest.mm

 // Copyright (c) 2013 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.
 
 #import "ui/message_center/cocoa/tray_view_controller.h"
 
 #include "base/mac/scoped_nsobject.h"
 #include "base/message_loop/message_loop.h"
 #include "base/run_loop.h"
 #include "base/strings/utf_string_conversions.h"
@@ skipping 230 matching lines @@
   // There are 0 notifications, but 2 notifiers. The settings pane should be
   // higher than the empty tray bubble.
   EXPECT_LT(trayHeight, NSHeight([[tray_ view] frame]));
 
   [tray_ showMessages:nil];
   EXPECT_EQ(1, provider.closed_called_count());
   EXPECT_TRUE(center_->IsMessageCenterVisible());
 
   // The tray should be back at its previous height now.
   EXPECT_EQ(trayHeight, NSHeight([[tray_ view] frame]));
+
+  // Clean up since this frame owns FakeNotifierSettingsProvider.
+  center_->SetNotifierSettingsProvider(NULL);
 }
 
 TEST_F(TrayViewControllerTest, EmptyCenter) {
   EXPECT_FALSE([[tray_ emptyDescription] isHidden]);
 
   // With no notifications, the divider should be hidden.
   EXPECT_TRUE([[tray_ divider] isHidden]);
   EXPECT_TRUE([[tray_ scrollView] isHidden]);
 
   scoped_ptr<message_center::Notification> notification;
   notification.reset(new message_center::Notification(
       message_center::NOTIFICATION_TYPE_SIMPLE,
       "1",
       ASCIIToUTF16("First notification"),
       ASCIIToUTF16("This is a simple test."),
       gfx::Image(),
       base::string16(),
       DummyNotifierId(),
       message_center::RichNotificationData(),
       NULL));
   center_->AddNotification(notification.Pass());
   [tray_ onMessageCenterTrayChanged];
 
   EXPECT_FALSE([[tray_ divider] isHidden]);
   EXPECT_FALSE([[tray_ scrollView] isHidden]);
   EXPECT_TRUE([[tray_ emptyDescription] isHidden]);
 }
 
 }  // namespace message_center