Rename VisitDatabaseObserver to HistoryServiceObserver

chrome/browser/history/chrome_history_client.cc

Index: chrome/browser/history/chrome_history_client.cc
diff --git a/chrome/browser/history/chrome_history_client.cc b/chrome/browser/history/chrome_history_client.cc
index d9f50f3003c004e02573674678d7dac05a51628b..84fbe551bcb3a850e35fa4bdb0a4dbb6b1ad4d00 100644
--- a/chrome/browser/history/chrome_history_client.cc
+++ b/chrome/browser/history/chrome_history_client.cc
@@ -36,7 +36,7 @@ ChromeHistoryClient::~ChromeHistoryClient() {
 void ChromeHistoryClient::SetHistoryService(HistoryService* history_service) {
   DCHECK(history_service);
   history_service_ = history_service;
-  history_service_->AddHistoryServiceObserver(this);
+  history_service_->AddObserver(this);
 }
 
 void ChromeHistoryClient::BlockUntilBookmarksLoaded() {
@@ -88,7 +88,7 @@ void ChromeHistoryClient::Shutdown() {
   // sees an incorrect view of bookmarks, but it's better than a deadlock.
   bookmark_model_->Shutdown();
   if (history_service_)
-    history_service_->RemoveHistoryServiceObserver(this);
+    history_service_->RemoveObserver(this);
 }
 
 // TODO(sdefresne): port client listening for NOTIFICATION_HISTORY_URL_VISITED