Use std::move() instead of .Pass() in remoting/host

remoting/host/backoff_timer.cc

Index: remoting/host/backoff_timer.cc
diff --git a/remoting/host/backoff_timer.cc b/remoting/host/backoff_timer.cc
index 16679b5b93f86ba4ac18fb74debef0fa10419845..5f2c07d7c8784b8b9b42a1e66c9d4425f3c5e722 100644
--- a/remoting/host/backoff_timer.cc
+++ b/remoting/host/backoff_timer.cc
@@ -4,13 +4,13 @@
 
 #include "remoting/host/backoff_timer.h"
 
+#include <utility>
+
 namespace remoting {
 
-BackoffTimer::BackoffTimer() : timer_(new base::Timer(false, false)) {
-}
+BackoffTimer::BackoffTimer() : timer_(new base::Timer(false, false)) {}
 
-BackoffTimer::~BackoffTimer() {
-}
+BackoffTimer::~BackoffTimer() {}
 
 void BackoffTimer::Start(const tracked_objects::Location& posted_from,
                          base::TimeDelta delay,
@@ -33,6 +33,10 @@ void BackoffTimer::Stop() {
   backoff_entry_.reset();
 };
 
+void BackoffTimer::SetTimerForTest(scoped_ptr<base::Timer> timer) {
+  timer_ = std::move(timer);
+}
+
 void BackoffTimer::StartTimer() {
   timer_->Start(
       posted_from_, backoff_entry_->GetTimeUntilRelease(),