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

remoting/host/setup/daemon_controller_delegate_win.cc

Index: remoting/host/setup/daemon_controller_delegate_win.cc
diff --git a/remoting/host/setup/daemon_controller_delegate_win.cc b/remoting/host/setup/daemon_controller_delegate_win.cc
index 9ed446e99a01938bb8646790ca46627a20eab550..8379ea7e2af4fe2972d43dba431b8156fae3ec50 100644
--- a/remoting/host/setup/daemon_controller_delegate_win.cc
+++ b/remoting/host/setup/daemon_controller_delegate_win.cc
@@ -173,13 +173,13 @@ 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(
@@ -189,7 +189,7 @@ scoped_ptr<base::DictionaryValue> DaemonControllerDelegateWin::GetConfig() {
           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()));