Convert //remoting to use std::unique_ptr

remoting/host/host_extension_session.h

 // Copyright 2014 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.
 
 #ifndef REMOTING_HOST_HOST_EXTENSION_SESSION_H_
 #define REMOTING_HOST_HOST_EXTENSION_SESSION_H_
 
-#include "base/memory/scoped_ptr.h"
-
 namespace webrtc {
 class DesktopCapturer;
 }
 
 namespace remoting {
 
 class ClientSessionControl;
 class VideoEncoder;
 
 namespace protocol {
@@ skipping 12 matching lines @@
   // It returns |true| if the message was handled, and |false| otherwise.
   virtual bool OnExtensionMessage(
       ClientSessionControl* client_session_control,
       protocol::ClientStub* client_stub,
       const protocol::ExtensionMessage& message) = 0;
 };
 
 }  // namespace remoting
 
 #endif  // REMOTING_HOST_HOST_EXTENSION_SESSION_H_