Remove NOTIFICATION_HISTORY_URLS_DELETED

chrome/browser/history/in_memory_history_backend.h

Index: chrome/browser/history/in_memory_history_backend.h
diff --git a/chrome/browser/history/in_memory_history_backend.h b/chrome/browser/history/in_memory_history_backend.h
index f06c3f6f4220e0726f7015ecbdb782e58a3dda45..b3f891175abfa60f803d11e6c0e5c9ed016c2fa2 100644
--- a/chrome/browser/history/in_memory_history_backend.h
+++ b/chrome/browser/history/in_memory_history_backend.h
@@ -74,6 +74,17 @@ class InMemoryHistoryBackend : public HistoryServiceObserver,
     return db_.get();
   }
 
+  // Notification callback.
+  void Observe(int type,
+               const content::NotificationSource& source,
+               const content::NotificationDetails& details) override;
+
+ private:
+  FRIEND_TEST_ALL_PREFIXES(HistoryBackendTest, DeleteAll);
+  FRIEND_TEST_ALL_PREFIXES(InMemoryHistoryBackendTest, OnURLsDeletedEnMasse);
+  friend class HistoryBackendTestBase;
+  friend class InMemoryHistoryBackendTest;
+
   // HistoryServiceObserver:
   void OnURLVisited(HistoryService* history_service,
                     ui::PageTransition transition,
@@ -82,21 +93,12 @@ class InMemoryHistoryBackend : public HistoryServiceObserver,
                     base::Time visit_time) override;
   void OnURLsModified(HistoryService* history_service,
                       const URLRows& changed_urls) override;
-
-  // Notification callback.
-  void Observe(int type,
-               const content::NotificationSource& source,
-               const content::NotificationDetails& details) override;
-
- private:
-  FRIEND_TEST_ALL_PREFIXES(HistoryBackendTest, DeleteAll);
+  void OnURLsDeleted(HistoryService* history_service,
+                     const URLsDeletedDetails& deleted_details) override;
 
   // Handler for HISTORY_URL_VISITED and HISTORY_URLS_MODIFIED.
   void OnURLVisitedOrModified(const URLRow& url_row);
 
-  // Handler for HISTORY_URLS_DELETED.
-  void OnURLsDeleted(const URLsDeletedDetails& details);
-
   // Handler for HISTORY_KEYWORD_SEARCH_TERM_UPDATED.
   void OnKeywordSearchTermUpdated(const KeywordSearchUpdatedDetails& details);