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

remoting/host/ipc_audio_capturer.cc

 // Copyright (c) 2012 The Chromium Authors. All rights reserved.
 // Use of this source code is governed by a BSD-style license that can be
 // found in the LICENSE file.
 
 #include "remoting/host/ipc_audio_capturer.h"
 
 #include "remoting/host/desktop_session_proxy.h"
 #include "remoting/proto/audio.pb.h"
 
 namespace remoting {
@@ skipping 10 matching lines @@
 bool IpcAudioCapturer::Start(const PacketCapturedCallback& callback) {
   DCHECK(callback_.is_null());
   DCHECK(!callback.is_null());
 
   callback_ = callback;
   desktop_session_proxy_->SetAudioCapturer(weak_factory_.GetWeakPtr());
   return true;
 }
 
 void IpcAudioCapturer::OnAudioPacket(scoped_ptr<AudioPacket> packet) {
-  callback_.Run(packet.Pass());
+  callback_.Run(std::move(packet));
 }
 
 }  // namespace remoting