Eliminate sending NOTIFICATION_HISTORY_KEYWORD_SEARCH_TERM_UPDATED

chrome/browser/history/history_backend.h

 // Copyright (c) 2012 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 CHROME_BROWSER_HISTORY_HISTORY_BACKEND_H_
 #define CHROME_BROWSER_HISTORY_HISTORY_BACKEND_H_
 
 #include <set>
 #include <string>
 #include <utility>
@@ skipping 125 matching lines @@
     // be forwarded to the HistoryServiceObservers in the correct thread.
     virtual void NotifyURLVisited(ui::PageTransition transition,
                                   const URLRow& row,
                                   const RedirectList& redirects,
                                   base::Time visit_time) = 0;
 
     // Notify HistoryService that some URLs have been modified. The event will
     // be forwarded to the HistoryServiceObservers in the correct thread.
     virtual void NotifyURLsModified(const URLRows& changed_urls) = 0;
 
+    virtual void NotifyHistoryKeywordSearchTermUpdated(

[sdefresne, 2014/12/24 09:03:43]

style: please comment this method

[Abhishek, 2014/12/24 19:39:41]

Done.

+        const URLRow& row,
+        KeywordID keyword_id,
+        const base::string16& term) = 0;
+
     // Broadcasts the specified notification to the notification service.
     // This is implemented here because notifications must only be sent from
     // the main thread. This is the only method that doesn't identify the
     // caller because notifications must always be sent.
     virtual void BroadcastNotifications(int type,
                                         scoped_ptr<HistoryDetails> details) = 0;
 
     // Invoked when the backend has finished loading the db.
     virtual void DBLoaded() = 0;
   };
@@ skipping 754 matching lines @@
 
   // List of observers
   ObserverList<HistoryBackendObserver> observers_;
 
   DISALLOW_COPY_AND_ASSIGN(HistoryBackend);
 };
 
 }  // namespace history
 
 #endif  // CHROME_BROWSER_HISTORY_HISTORY_BACKEND_H_