For types that support Pass(), e.g. scoped_ptr and friends, use Passed in PostTaskAndReplyWithResul…

base/task_runner_util.h

 // 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.
 
 #ifndef BASE_TASK_RUNNER_UTIL_H_
 #define BASE_TASK_RUNNER_UTIL_H_
 #pragma once
 
 #include "base/bind.h"
 #include "base/bind_helpers.h"
+#include "base/callback_internal.h"
 #include "base/logging.h"
 #include "base/task_runner.h"
 
 namespace base {
 
 namespace internal {
 
 // Helper class for TaskRunner::PostTaskAndReplyWithResult.
 template <typename ReturnType>
 void ReturnAsParamAdapter(const Callback<ReturnType(void)>& func,
                           ReturnType* result) {
   if (!func.is_null())
     *result = func.Run();
 }
 
 // Helper class for TaskRunner::PostTaskAndReplyWithResult.
 template <typename ReturnType>
 Closure ReturnAsParam(const Callback<ReturnType(void)>& func,
                       ReturnType* result) {
   DCHECK(result);
   return Bind(&ReturnAsParamAdapter<ReturnType>, func, result);
 }
 
 // Helper class for TaskRunner::PostTaskAndReplyWithResult.
 template <typename ReturnType>
 void ReplyAdapter(const Callback<void(ReturnType)>& callback,
                   ReturnType* result) {
   DCHECK(result);
   if(!callback.is_null())
-    callback.Run(*result);
+    callback.Run(CallbackForward(*result));
 }
 
 // Helper class for TaskRunner::PostTaskAndReplyWithResult.
 template <typename ReturnType, typename OwnedType>
 Closure ReplyHelper(const Callback<void(ReturnType)>& callback,
                     OwnedType result) {
   return Bind(&ReplyAdapter<ReturnType>, callback, result);
 }
 
 }  // namespace internal
@@ skipping 21 matching lines @@
   ReturnType* result = new ReturnType;
   return task_runner->PostTaskAndReply(
       from_here,
       internal::ReturnAsParam<ReturnType>(task, result),
       internal::ReplyHelper(reply, Owned(result)));
 }
 
 }  // namespace base
 
 #endif  // BASE_TASK_RUNNER_UTIL_H_