Revert 284958 "Make HistoryDBTask not refcounted, and ensure it'..."

trunk/src/chrome/browser/history/delete_directive_handler.cc

Index: trunk/src/chrome/browser/history/delete_directive_handler.cc
===================================================================
--- trunk/src/chrome/browser/history/delete_directive_handler.cc	(revision 285001)
+++ trunk/src/chrome/browser/history/delete_directive_handler.cc	(working copy)
@@ -299,10 +299,9 @@
   if (!initial_sync_data.empty()) {
     // Drop processed delete directives during startup.
     history_service->ScheduleDBTask(
-        scoped_ptr<history::HistoryDBTask>(
-            new DeleteDirectiveTask(weak_ptr_factory_.GetWeakPtr(),
-                                    initial_sync_data,
-                                    DROP_AFTER_PROCESSING)),
+        new DeleteDirectiveTask(weak_ptr_factory_.GetWeakPtr(),
+                                initial_sync_data,
+                                DROP_AFTER_PROCESSING),
         &internal_tracker_);
   }
 }
@@ -410,10 +409,9 @@
     // redelivered delete directives to avoid processing them again and again
     // in one chrome session.
     history_service->ScheduleDBTask(
-        scoped_ptr<history::HistoryDBTask>(
-            new DeleteDirectiveTask(weak_ptr_factory_.GetWeakPtr(),
-                                    delete_directives,
-                                    KEEP_AFTER_PROCESSING)),
+        new DeleteDirectiveTask(weak_ptr_factory_.GetWeakPtr(),
+                                delete_directives,
+                                KEEP_AFTER_PROCESSING),
         &internal_tracker_);
   }
   return syncer::SyncError();