Pass Callback by value on PostTaskAndReply family

base/task_runner.cc

Index: base/task_runner.cc
diff --git a/base/task_runner.cc b/base/task_runner.cc
index 262e1f8b09eac8d9f91b4113ddeccc27a33323ad..35c0a23274a4fc7e72953912180d714ee6101826 100644
--- a/base/task_runner.cc
+++ b/base/task_runner.cc
@@ -4,6 +4,8 @@
 
 #include "base/task_runner.h"
 
+#include <utility>
+
 #include "base/compiler_specific.h"
 #include "base/logging.h"
 #include "base/threading/post_task_and_reply_impl.h"
@@ -45,12 +47,11 @@ bool TaskRunner::PostTask(const tracked_objects::Location& from_here,
   return PostDelayedTask(from_here, task, base::TimeDelta());
 }
 
-bool TaskRunner::PostTaskAndReply(
-    const tracked_objects::Location& from_here,
-    const Closure& task,
-    const Closure& reply) {
+bool TaskRunner::PostTaskAndReply(const tracked_objects::Location& from_here,
+                                  Closure task,
+                                  Closure reply) {
   return PostTaskAndReplyTaskRunner(this).PostTaskAndReply(
-      from_here, task, reply);
+      from_here, std::move(task), std::move(reply));
 }
 
 TaskRunner::TaskRunner() {}