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

remoting/codec/audio_decoder_opus.cc

Index: remoting/codec/audio_decoder_opus.cc
diff --git a/remoting/codec/audio_decoder_opus.cc b/remoting/codec/audio_decoder_opus.cc
index 0bcabcc5653d40227038a90c60068c2e5e30630c..8a578712bc59d50e310173cfd6ffaf1ed6a07823 100644
--- a/remoting/codec/audio_decoder_opus.cc
+++ b/remoting/codec/audio_decoder_opus.cc
@@ -74,7 +74,6 @@ bool AudioDecoderOpus::ResetForPacket(AudioPacket* packet) {
   return decoder_ != nullptr;
 }
 
-
 scoped_ptr<AudioPacket> AudioDecoderOpus::Decode(
     scoped_ptr<AudioPacket> packet) {
   if (packet->encoding() != AudioPacket::ENCODING_OPUS) {
@@ -133,7 +132,7 @@ scoped_ptr<AudioPacket> AudioDecoderOpus::Decode(
 
   decoded_data->resize(buffer_pos);
 
-  return decoded_packet.Pass();
+  return decoded_packet;
 }
 
 }  // namespace remoting