Fix WebDataRequest ownership gap

chrome/browser/webdata/web_data_service.h

Index: chrome/browser/webdata/web_data_service.h
diff --git a/chrome/browser/webdata/web_data_service.h b/chrome/browser/webdata/web_data_service.h
index f311083a056bdb246c80b68691c5af14091781ae..8b6ae711967463d705de0fed778466bc57a64b53 100644
--- a/chrome/browser/webdata/web_data_service.h
+++ b/chrome/browser/webdata/web_data_service.h
@@ -327,9 +327,6 @@ class WebDataService
   // This is invoked by the unit test; path is the path of the Web Data file.
   bool InitWithPath(const FilePath& path);
 
-  // Invoked by request implementations when a request has been processed.
-  void RequestCompleted(Handle h);
-
   //////////////////////////////////////////////////////////////////////////////
   //
   // The following methods are only invoked in the web data service thread.
@@ -374,10 +371,10 @@ class WebDataService
       WebDataServiceConsumer* consumer);
 
   void DBTaskWrapper(const base::Closure& task,
-                     WebDataRequest* request);
+                     scoped_ptr<WebDataRequest> request);
 
   void DBResultTaskWrapper(const ResultTask& task,
-                           WebDataRequest* request);
+                           scoped_ptr<WebDataRequest> request);
 
   // Schedule a commit if one is not already pending.
   void ScheduleCommit();