Remove dependency of WebData on notifications

components/webdata/common/web_database.h

Index: components/webdata/common/web_database.h
diff --git a/components/webdata/common/web_database.h b/components/webdata/common/web_database.h
index 62aff94b706ac0be469f5136e949201d7c17032c..e7fedf072b29e964d177d854e540e4330cc946e7 100644
--- a/components/webdata/common/web_database.h
+++ b/components/webdata/common/web_database.h
@@ -18,10 +18,6 @@ namespace base {
 class FilePath;
 }
 
-namespace content {
-class NotificationService;
-}
-
 // This class manages a SQLite database that stores various web page meta data.
 class WEBDATA_EXPORT WebDatabase {
  public:
@@ -71,8 +67,6 @@ class WEBDATA_EXPORT WebDatabase {
   typedef std::map<WebDatabaseTable::TypeKey, WebDatabaseTable*> TableMap;
   TableMap tables_;
 
-  scoped_ptr<content::NotificationService> notification_service_;
-
   DISALLOW_COPY_AND_ASSIGN(WebDatabase);
 };