Fix Crash Due to Programmatic Dismissal of a Notification.

chrome/browser/notifications/extension_welcome_notification.cc

Index: chrome/browser/notifications/extension_welcome_notification.cc
diff --git a/chrome/browser/notifications/extension_welcome_notification.cc b/chrome/browser/notifications/extension_welcome_notification.cc
index 7790ffc8a2c5f3af4221bdf36a46a7493943c851..67e6770e174b4fd39442f3bd04320e6e1a3add9f 100644
--- a/chrome/browser/notifications/extension_welcome_notification.cc
+++ b/chrome/browser/notifications/extension_welcome_notification.cc
@@ -91,7 +91,7 @@ class NotificationCallbacks
     message_center::MessageCenter* message_center =
         delegate_->GetMessageCenter();
     message_center->DisableNotificationsByNotifier(notifier_id_);
-    message_center->RemoveNotification(welcome_notification_id_, true);
+    message_center->RemoveNotification(welcome_notification_id_, false);
     message_center->GetNotifierSettingsProvider()->SetNotifierEnabled(
         notifier, false);
   }