Convert //remoting to use std::unique_ptr

remoting/host/native_messaging/pipe_messaging_channel.cc

Index: remoting/host/native_messaging/pipe_messaging_channel.cc
diff --git a/remoting/host/native_messaging/pipe_messaging_channel.cc b/remoting/host/native_messaging/pipe_messaging_channel.cc
index a1e8831ee8919eb004a37f63d93d4f5faa6e1fc3..014e67de4c486dfeb12d5b5e6ac7ef1ceb097e6e 100644
--- a/remoting/host/native_messaging/pipe_messaging_channel.cc
+++ b/remoting/host/native_messaging/pipe_messaging_channel.cc
@@ -68,14 +68,15 @@ void PipeMessagingChannel::Start(EventHandler* event_handler) {
       base::Bind(&PipeMessagingChannel::Shutdown, weak_ptr_));
 }
 
-void PipeMessagingChannel::ProcessMessage(scoped_ptr<base::Value> message) {
+void PipeMessagingChannel::ProcessMessage(
+    std::unique_ptr<base::Value> message) {
   DCHECK(CalledOnValidThread());
 
   if (event_handler_)
     event_handler_->OnMessage(std::move(message));
 }
 
-void PipeMessagingChannel::SendMessage(scoped_ptr<base::Value> message) {
+void PipeMessagingChannel::SendMessage(std::unique_ptr<base::Value> message) {
   DCHECK(CalledOnValidThread());
 
   bool success = message && native_messaging_writer_;