ntp_snippets cleanup: Update some interface comments

components/ntp_snippets/category_status.h

 // Copyright 2016 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.
 
 #ifndef COMPONENTS_NTP_SNIPPETS_CATEGORY_STATUS_H_
 #define COMPONENTS_NTP_SNIPPETS_CATEGORY_STATUS_H_
 
 namespace ntp_snippets {
 
 // Represents the status of a category of content suggestions.
@@ skipping 10 matching lines @@
   AVAILABLE,
   // Content suggestions are provided but not yet loaded.
   AVAILABLE_LOADING,
 
   // There is no provider that provides suggestions for this category.
   NOT_PROVIDED,
   // The entire content suggestions feature has explicitly been disabled as part
   // of the service configuration.
   ALL_SUGGESTIONS_EXPLICITLY_DISABLED,
   // Content suggestions from a specific category have been disabled as part of
-  // the service configuration.
+  // the service configuration. Any suggestions from this category should be
+  // removed from the UI immediately.
   CATEGORY_EXPLICITLY_DISABLED,
 
   // Content suggestions are not available because an error occurred when
-  // loading or updating them.
+  // loading or updating them. Any suggestions from this category should be
+  // removed from the UI immediately.
   LOADING_ERROR
 };
 
 // Determines whether the given status is one of the AVAILABLE statuses.
 bool IsCategoryStatusAvailable(CategoryStatus status);
 
 // Determines whether the given status is INITIALIZING or one of the AVAILABLE
 // statuses. All of these statuses have in common that there is or will soon be
 // content.
 bool IsCategoryStatusInitOrAvailable(CategoryStatus status);
 
 }  // namespace ntp_snippets
 
 #endif  // COMPONENTS_NTP_SNIPPETS_CATEGORY_STATUS_H_