[SPDY] Refactor SpdySession's write queue

net/spdy/spdy_frame_producer.cc

+// Copyright (c) 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 "net/spdy/spdy_frame_producer.h"
+
+#include "base/logging.h"
+#include "net/spdy/spdy_protocol.h"
+
+namespace net {
+
+SpdyFrameProducer::SpdyFrameProducer() {}
+
+SpdyFrameProducer::~SpdyFrameProducer() {}
+
+SimpleFrameProducer::SimpleFrameProducer(scoped_ptr<SpdyFrame> frame)
+    : frame_(frame.Pass()) {}
+
+SimpleFrameProducer::~SimpleFrameProducer() {}
+
+scoped_ptr<SpdyFrame> SimpleFrameProducer::ProduceFrame() {
+  DCHECK(frame_);
+  return frame_.Pass();
+}
+
+}  // namespace net