Eliminate sending NOTIFICATION_HISTORY_KEYWORD_SEARCH_TERM_UPDATED

chrome/browser/android/provider/chrome_browser_provider.cc

 // 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.
 
 #include "chrome/browser/android/provider/chrome_browser_provider.h"
 
 #include <cmath>
 #include <list>
 #include <utility>
 
@@ skipping 1158 matching lines @@
   favicon_service_ = FaviconServiceFactory::GetForProfile(
       profile_, Profile::EXPLICIT_ACCESS),
   service_.reset(new AndroidHistoryProviderService(profile_));
 
   // Registers the notifications we are interested.
   bookmark_model_->AddObserver(this);
   history_service_observer_.Add(
       HistoryServiceFactory::GetForProfile(profile_, Profile::EXPLICIT_ACCESS));
   notification_registrar_.Add(this, chrome::NOTIFICATION_HISTORY_URLS_DELETED,
                               content::NotificationService::AllSources());
-  notification_registrar_.Add(this,
-      chrome::NOTIFICATION_HISTORY_KEYWORD_SEARCH_TERM_UPDATED,
-      content::NotificationService::AllSources());
   TemplateURLService* template_service =
         TemplateURLServiceFactory::GetForProfile(profile_);
   if (!template_service->loaded())
     template_service->Load();
 }
 
 ChromeBrowserProvider::~ChromeBrowserProvider() {
   bookmark_model_->RemoveObserver(this);
 }
 
@@ skipping 427 matching lines @@
 }
 
 void ChromeBrowserProvider::OnURLVisited(HistoryService* history_service,
                                          ui::PageTransition transition,
                                          const history::URLRow& row,
                                          const history::RedirectList& redirects,
                                          base::Time visit_time) {
   OnHistoryChanged();
 }
 
+void ChromeBrowserProvider::OnKeywordSearchTermUpdated(
+    HistoryService* history_service,
+    const history::URLRow& row,
+    history::KeywordID keyword_id,
+    const base::string16& term) {
+  JNIEnv* env = AttachCurrentThread();
+  ScopedJavaLocalRef<jobject> obj = weak_java_provider_.get(env);
+  if (obj.is_null())
+    return;
+  Java_ChromeBrowserProvider_onSearchTermChanged(env, obj.obj());
+}
+
 void ChromeBrowserProvider::Observe(
     int type,
     const content::NotificationSource& source,
     const content::NotificationDetails& details) {
-  if (type == chrome::NOTIFICATION_HISTORY_URLS_DELETED) {
-    OnHistoryChanged();
-  } else if (type ==
-      chrome::NOTIFICATION_HISTORY_KEYWORD_SEARCH_TERM_UPDATED) {
-    JNIEnv* env = AttachCurrentThread();
-    ScopedJavaLocalRef<jobject> obj = weak_java_provider_.get(env);
-    if (obj.is_null())
-      return;
-    Java_ChromeBrowserProvider_onSearchTermChanged(env, obj.obj());
-  }
+  DCHECK_EQ(type, chrome::NOTIFICATION_HISTORY_URLS_DELETED);
+  OnHistoryChanged();
 }