[NTP Snippets] Introduce ContentSuggestion::ID

chrome/browser/ui/webui/snippets_internals_message_handler.h

Index: chrome/browser/ui/webui/snippets_internals_message_handler.h
diff --git a/chrome/browser/ui/webui/snippets_internals_message_handler.h b/chrome/browser/ui/webui/snippets_internals_message_handler.h
index 6b423bc9d497bc286cff96b015d8da6574080ef5..4ca4ead04e6f795a5ac95ee5167cf750b3b10f00 100644
--- a/chrome/browser/ui/webui/snippets_internals_message_handler.h
+++ b/chrome/browser/ui/webui/snippets_internals_message_handler.h
@@ -41,8 +41,8 @@ class SnippetsInternalsMessageHandler
   void OnCategoryStatusChanged(
       ntp_snippets::Category category,
       ntp_snippets::CategoryStatus new_status) override;
-  void OnSuggestionInvalidated(ntp_snippets::Category category,
-                               const std::string& suggestion_id) override;
+  void OnSuggestionInvalidated(
+      const ntp_snippets::ContentSuggestion::ID& suggestion_id) override;
   void ContentSuggestionsServiceShutdown() override;
 
   void HandleRefreshContent(const base::ListValue* args);