Pass Callback to TaskRunner by value and consume it on invocation (1)

base/task_scheduler/task.cc

Index: base/task_scheduler/task.cc
diff --git a/base/task_scheduler/task.cc b/base/task_scheduler/task.cc
index bf3bbbd5c19d041acc197ac7c114cadcc8f43996..44aaa6016ddda0a159f8c39660246dae63390990 100644
--- a/base/task_scheduler/task.cc
+++ b/base/task_scheduler/task.cc
@@ -4,20 +4,22 @@
 
 #include "base/task_scheduler/task.h"
 
+#include <utility>
+
 #include "base/critical_closure.h"
 
 namespace base {
 namespace internal {
 
 Task::Task(const tracked_objects::Location& posted_from,
-           const Closure& task,
+           Closure task,
            const TaskTraits& traits,
            TimeDelta delay)
     : PendingTask(
           posted_from,
           traits.shutdown_behavior() == TaskShutdownBehavior::BLOCK_SHUTDOWN
-              ? MakeCriticalClosure(task)
-              : task,
+              ? MakeCriticalClosure(std::move(task))
+              : std::move(task),
           delay.is_zero() ? TimeTicks() : TimeTicks::Now() + delay,
           false),  // Not nestable.
       // Prevent a delayed BLOCK_SHUTDOWN task from blocking shutdown before