Use base/scoped_ptr.h; system_wrappers/interface/scoped_ptr.h is going away

BUG=
R=andrew@webrtc.org

Review URL: https://webrtc-codereview.appspot.com/36229004

Cr-Commit-Position: refs/heads/master@{#8517}
git-svn-id: http://webrtc.googlecode.com/svn/trunk@8517 4adac7df-926f-26a2-2b94-8c16560cd09d
diff --git a/webrtc/system_wrappers/source/file_impl.h b/webrtc/system_wrappers/source/file_impl.h
index bed692b..26e9d4d 100644
--- a/webrtc/system_wrappers/source/file_impl.h
+++ b/webrtc/system_wrappers/source/file_impl.h
@@ -13,8 +13,8 @@
 
 #include <stdio.h>
 
+#include "webrtc/base/scoped_ptr.h"
 #include "webrtc/system_wrappers/interface/file_wrapper.h"
-#include "webrtc/system_wrappers/interface/scoped_ptr.h"
 
 namespace webrtc {
 
@@ -53,7 +53,7 @@
   int CloseFileImpl();
   int FlushImpl();
 
-  scoped_ptr<RWLockWrapper> rw_lock_;
+  rtc::scoped_ptr<RWLockWrapper> rw_lock_;
 
   FILE* id_;
   bool managed_file_handle_;