Convert //ppapi to use std::unique_ptr

ppapi/proxy/message_handler.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 PPAPI_PROXY_MESSAGE_HANDLER_H_
 #define PPAPI_PROXY_MESSAGE_HANDLER_H_
 
 #include <stdint.h>
 
+#include <memory>
+
 #include "base/macros.h"
 #include "base/memory/ref_counted.h"
-#include "base/memory/scoped_ptr.h"
 #include "ppapi/c/pp_resource.h"
 #include "ppapi/c/ppp_message_handler.h"
 #include "ppapi/proxy/ppapi_proxy_export.h"
 
 namespace IPC {
 class Message;
 }
 
 namespace ppapi {
 
@@ skipping 14 matching lines @@
   //              the function pointers within must be valid, or we fail
   //              with PP_ERROR_BADARGUMENT.
   // |user_data| is a pointer provided by the plugin that we pass back when we
   //             call functions in |handler_if|.
   // |message_loop| is the message loop where we will invoke functions in
   //                |handler_if|. Must not be the main thread message loop,
   //                to try to force the plugin to not over-subscribe the main
   //                thread. If it's the main thread loop, |error| will be set
   //                to PP_ERROR_WRONGTHREAD.
   // |error| is an out-param that will be set on failure.
-  static scoped_ptr<MessageHandler> Create(
+  static std::unique_ptr<MessageHandler> Create(
       PP_Instance instance,
       const PPP_MessageHandler_0_2* handler_if,
       void* user_data,
       PP_Resource message_loop,
       int32_t* error);
   ~MessageHandler();
 
   bool LoopIsValid() const;
 
   void HandleMessage(ScopedPPVar var);
   void HandleBlockingMessage(ScopedPPVar var,
-                             scoped_ptr<IPC::Message> reply_msg);
+                             std::unique_ptr<IPC::Message> reply_msg);
 
  private:
   MessageHandler(PP_Instance instance,
                  const PPP_MessageHandler_0_2* handler_if,
                  void* user_data,
                  scoped_refptr<MessageLoopResource> message_loop);
   PP_Instance instance_;
   const PPP_MessageHandler_0_2* handler_if_;
   void* user_data_;
   scoped_refptr<MessageLoopResource> message_loop_;
 
   DISALLOW_COPY_AND_ASSIGN(MessageHandler);
 };
 
 }  // namespace proxy
 }  // namespace ppapi
 
 #endif  // PPAPI_PROXY_MESSAGE_HANDLER_H_