Convert //chrome/browser/extensions from scoped_ptr to std::unique_ptr

chrome/browser/extensions/api/webrtc_desktop_capture_private/webrtc_desktop_capture_private_api.cc

 // Copyright 2015 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 "chrome/browser/extensions/api/webrtc_desktop_capture_private/webrtc_desktop_capture_private_api.h"
 
 #include "base/command_line.h"
 #include "base/strings/utf_string_conversions.h"
 #include "chrome/browser/extensions/extension_tab_util.h"
 #include "chrome/browser/profiles/profile.h"
@@ skipping 29 matching lines @@
       extensions::api::webrtc_desktop_capture_private::ChooseDesktopMedia
           ::Params;
   EXTENSION_FUNCTION_VALIDATE(args_->GetSize() > 0);
 
   EXTENSION_FUNCTION_VALIDATE(args_->GetInteger(0, &request_id_));
   DesktopCaptureRequestsRegistry::GetInstance()->AddRequest(
       render_frame_host()->GetProcess()->GetID(), request_id_, this);
 
   args_->Remove(0, NULL);
 
-  scoped_ptr<Params> params = Params::Create(*args_);
+  std::unique_ptr<Params> params = Params::Create(*args_);
   EXTENSION_FUNCTION_VALIDATE(params.get());
 
   content::RenderFrameHost* rfh = content::RenderFrameHost::FromID(
       params->request.guest_process_id,
       params->request.guest_render_frame_id);
 
   if (!rfh) {
     error_ = kTargetNotFoundError;
     return false;
   }
@@ skipping 21 matching lines @@
   return Execute(*sources, web_contents, origin, target_name);
 }
 
 WebrtcDesktopCapturePrivateCancelChooseDesktopMediaFunction::
     WebrtcDesktopCapturePrivateCancelChooseDesktopMediaFunction() {}
 
 WebrtcDesktopCapturePrivateCancelChooseDesktopMediaFunction::
     ~WebrtcDesktopCapturePrivateCancelChooseDesktopMediaFunction() {}
 
 }  // namespace extensions