Convert Pass()→std::move() in //storage

storage/browser/fileapi/timed_task_helper.cc

Index: storage/browser/fileapi/timed_task_helper.cc
diff --git a/storage/browser/fileapi/timed_task_helper.cc b/storage/browser/fileapi/timed_task_helper.cc
index f16f8b83a38e79a87a2af3d62e3bcabfe7362a9c..69635d00bde2d97c092e44a15889951c7829b5b9 100644
--- a/storage/browser/fileapi/timed_task_helper.cc
+++ b/storage/browser/fileapi/timed_task_helper.cc
@@ -4,6 +4,8 @@
 
 #include "storage/browser/fileapi/timed_task_helper.h"
 
+#include <utility>
+
 #include "base/bind.h"
 #include "base/logging.h"
 #include "base/sequenced_task_runner.h"
@@ -64,14 +66,14 @@ void TimedTaskHelper::Fired(scoped_ptr<Tracker> tracker) {
   if (!tracker->timer)
     return;
   TimedTaskHelper* timer = tracker->timer;
-  timer->OnFired(tracker.Pass());
+  timer->OnFired(std::move(tracker));
 }
 
 void TimedTaskHelper::OnFired(scoped_ptr<Tracker> tracker) {
   DCHECK(task_runner_->RunsTasksOnCurrentThread());
   base::TimeTicks now = base::TimeTicks::Now();
   if (desired_run_time_ > now) {
-    PostDelayedTask(tracker.Pass(), desired_run_time_ - now);
+    PostDelayedTask(std::move(tracker), desired_run_time_ - now);
     return;
   }
   tracker.reset();