Cleaned up the reader and writer create methods to return scoped_ptr.

remoting/protocol/video_writer.cc

Index: remoting/protocol/video_writer.cc
diff --git a/remoting/protocol/video_writer.cc b/remoting/protocol/video_writer.cc
index 99da94771a8dc836bad8ce973bdc7ce3d23c2f7a..04f03f3fd1c907650b69d1e3e50dbb5de03860f1 100644
--- a/remoting/protocol/video_writer.cc
+++ b/remoting/protocol/video_writer.cc
@@ -13,12 +13,12 @@ namespace protocol {
 VideoWriter::~VideoWriter() { }
 
 // static
-VideoWriter* VideoWriter::Create(const SessionConfig& config) {
+scoped_ptr<VideoWriter> VideoWriter::Create(const SessionConfig& config) {
   const ChannelConfig& video_config = config.video_config();
   if (video_config.transport == ChannelConfig::TRANSPORT_STREAM) {
-    return new ProtobufVideoWriter();
+    return scoped_ptr<VideoWriter>(new ProtobufVideoWriter());
   }
-  return NULL;
+  return scoped_ptr<VideoWriter>(NULL);
 }
 
 }  // namespace protocol