Replace scoped_ptr with unique_ptr in webrtc/base/

webrtc/base/filerotatingstream.h

Index: webrtc/base/filerotatingstream.h
diff --git a/webrtc/base/filerotatingstream.h b/webrtc/base/filerotatingstream.h
index 9e8e35ddd7f59ef1b54c69ea785c6216ddbd3b18..a8522ff0c5f01d672d7e265a9a797cab0d59d677 100644
--- a/webrtc/base/filerotatingstream.h
+++ b/webrtc/base/filerotatingstream.h
@@ -11,6 +11,7 @@
 #ifndef WEBRTC_BASE_FILEROTATINGSTREAM_H_
 #define WEBRTC_BASE_FILEROTATINGSTREAM_H_
 
+#include <memory>
 #include <string>
 #include <vector>
 
@@ -110,7 +111,7 @@ class FileRotatingStream : public StreamInterface {
   const Mode mode_;
 
   // FileStream is used to write to the current file.
-  scoped_ptr<FileStream> file_stream_;
+  std::unique_ptr<FileStream> file_stream_;
   // Convenience storage for file names so we don't generate them over and over.
   std::vector<std::string> file_names_;
   size_t max_file_size_;