Cleanup usage of scoped_ptr<> in remoting for C++11

remoting/host/setup/daemon_controller_delegate_win.cc

 // Copyright 2013 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 "remoting/host/setup/daemon_controller_delegate_win.h"
 
 #include "base/basictypes.h"
 #include "base/bind.h"
 #include "base/bind_helpers.h"
 #include "base/compiler_specific.h"
@@ skipping 155 matching lines @@
       return DaemonController::STATE_NOT_INSTALLED;
     default:
       return DaemonController::STATE_UNKNOWN;
   }
 }
 
 scoped_ptr<base::DictionaryValue> DaemonControllerDelegateWin::GetConfig() {
   // Configure and start the Daemon Controller if it is installed already.
   HRESULT hr = ActivateController();
   if (FAILED(hr))
-    return scoped_ptr<base::DictionaryValue>();
+    return nullptr;
 
   // Get the host configuration.
   ScopedBstr host_config;
   hr = control_->GetConfig(host_config.Receive());
   if (FAILED(hr))
-    return scoped_ptr<base::DictionaryValue>();
+    return nullptr;
 
   // Parse the string into a dictionary.
   base::string16 file_content(
       static_cast<BSTR>(host_config), host_config.Length());
   scoped_ptr<base::Value> config(
       base::JSONReader::Read(base::UTF16ToUTF8(file_content),
           base::JSON_ALLOW_TRAILING_COMMAS));
 
   if (!config || config->GetType() != base::Value::TYPE_DICTIONARY)
-    return scoped_ptr<base::DictionaryValue>();
+    return nullptr;
 
   return scoped_ptr<base::DictionaryValue>(
       static_cast<base::DictionaryValue*>(config.release()));
 }
 
 void DaemonControllerDelegateWin::InstallHost(
     const DaemonController::CompletionCallback& done) {
   DoInstallHost(base::Bind(&InvokeCompletionCallback, done));
 }
 
@@ skipping 255 matching lines @@
   InvokeCompletionCallback(done, hr);
 }
 
 scoped_refptr<DaemonController> DaemonController::Create() {
   scoped_ptr<DaemonController::Delegate> delegate(
       new DaemonControllerDelegateWin());
   return new DaemonController(delegate.Pass());
 }
 
 }  // namespace remoting