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

remoting/host/desktop_capturer_proxy.cc

Index: remoting/host/desktop_capturer_proxy.cc
diff --git a/remoting/host/desktop_capturer_proxy.cc b/remoting/host/desktop_capturer_proxy.cc
index ad26527c01a76b606dccde5bc619b4b83c4f6c55..aa7117931f4859a99b4fd1ff92a5cb48df48aa0f 100644
--- a/remoting/host/desktop_capturer_proxy.cc
+++ b/remoting/host/desktop_capturer_proxy.cc
@@ -44,7 +44,7 @@ DesktopCapturerProxy::Core::Core(
     scoped_ptr<webrtc::DesktopCapturer> capturer)
     : proxy_(proxy),
       caller_task_runner_(base::ThreadTaskRunnerHandle::Get()),
-      capturer_(capturer.Pass()) {
+      capturer_(std::move(capturer)) {
   thread_checker_.DetachFromThread();
 }
 
@@ -87,7 +87,7 @@ DesktopCapturerProxy::DesktopCapturerProxy(
     : capture_task_runner_(capture_task_runner),
       weak_factory_(this) {
   core_.reset(new Core(weak_factory_.GetWeakPtr(), capture_task_runner,
-                       capturer.Pass()));
+                       std::move(capturer)));
 }
 
 void DesktopCapturerProxy::Start(Callback* callback) {