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

third_party/WebKit/Source/platform/scheduler/child/scheduler_tqm_delegate_impl.h

Index: third_party/WebKit/Source/platform/scheduler/child/scheduler_tqm_delegate_impl.h
diff --git a/third_party/WebKit/Source/platform/scheduler/child/scheduler_tqm_delegate_impl.h b/third_party/WebKit/Source/platform/scheduler/child/scheduler_tqm_delegate_impl.h
index 81de9f449d6ef5c4e5ddb48ba776da5292be1ccd..b8308a7edd6256c887b8ce9e0b45e15f78e8f18d 100644
--- a/third_party/WebKit/Source/platform/scheduler/child/scheduler_tqm_delegate_impl.h
+++ b/third_party/WebKit/Source/platform/scheduler/child/scheduler_tqm_delegate_impl.h
@@ -7,6 +7,7 @@
 
 #include <memory>
 
+#include "base/callback.h"
 #include "base/macros.h"
 #include "base/message_loop/message_loop.h"
 #include "base/time/tick_clock.h"
@@ -28,10 +29,10 @@ class BLINK_PLATFORM_EXPORT SchedulerTqmDelegateImpl
       scoped_refptr<base::SingleThreadTaskRunner> task_runner) override;
   void RestoreDefaultTaskRunner() override;
   bool PostDelayedTask(const tracked_objects::Location& from_here,
-                       const base::Closure& task,
+                       base::Closure task,
                        base::TimeDelta delay) override;
   bool PostNonNestableDelayedTask(const tracked_objects::Location& from_here,
-                                  const base::Closure& task,
+                                  base::Closure task,
                                   base::TimeDelta delay) override;
   bool RunsTasksOnCurrentThread() const override;
   bool IsNested() const override;