Replace Closure in TaskRunner::PostTask with OneShotCallback

base/task_scheduler/post_task.cc

 // Copyright 2016 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.
 
 #include "base/task_scheduler/post_task.h"
 
+#include "base/callback.h"
 #include "base/task_scheduler/task_scheduler.h"
 #include "base/threading/post_task_and_reply_impl.h"
 
 namespace base {
 
 namespace {
 
 class PostTaskAndReplyTaskRunner : public internal::PostTaskAndReplyImpl {
  public:
   explicit PostTaskAndReplyTaskRunner(TaskTraits traits)
       : traits_(traits) {}
 
  private:
   bool PostTask(const tracked_objects::Location& from_here,
-                const Closure& task) override {
-    PostTaskWithTraits(from_here, traits_, task);
+                OnceClosure task) override {
+    PostTaskWithTraits(from_here, traits_, std::move(task));
     return true;
   }
 
   const TaskTraits traits_;
 };
 
 
 }  // namespace
 
-void PostTask(const tracked_objects::Location& from_here, const Closure& task) {
-  PostTaskWithTraits(from_here, TaskTraits(), task);
+void PostTask(const tracked_objects::Location& from_here, OnceClosure task) {
+  PostTaskWithTraits(from_here, TaskTraits(), std::move(task));
 }
 
 void PostTaskAndReply(const tracked_objects::Location& from_here,
-                      const Closure& task,
-                      const Closure& reply) {
-  PostTaskWithTraitsAndReply(from_here, TaskTraits(), task, reply);
+                      OnceClosure task,
+                      OnceClosure reply) {
+  PostTaskWithTraitsAndReply(from_here, TaskTraits(),
+                             std::move(task), std::move(reply));
 }
 
 void PostTaskWithTraits(const tracked_objects::Location& from_here,
                         TaskTraits traits,
-                        const Closure& task) {
-  TaskScheduler::GetInstance()->PostTaskWithTraits(from_here, traits, task);
+                        OnceClosure task) {
+  TaskScheduler::GetInstance()->PostTaskWithTraits(from_here, traits,
+                                                   std::move(task));
 }
 
 void PostTaskWithTraitsAndReply(const tracked_objects::Location& from_here,
                                 TaskTraits traits,
-                                const Closure& task,
-                                const Closure& reply) {
-  PostTaskAndReplyTaskRunner(traits).PostTaskAndReply(from_here, task, reply);
+                                OnceClosure task,
+                                OnceClosure reply) {
+  PostTaskAndReplyTaskRunner(traits).PostTaskAndReply(
+      from_here, std::move(task), std::move(reply));
 }
 
 scoped_refptr<TaskRunner> CreateTaskRunnerWithTraits(
     TaskTraits traits,
     ExecutionMode execution_mode) {
   return TaskScheduler::GetInstance()->CreateTaskRunnerWithTraits(
       traits, execution_mode);
 }
 
 }  // namespace base