Introduce HttpStream and HttpBasicStream.

net/http/http_basic_stream.h

+// Copyright (c) 2009 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.
+//
+// HttpBasicStream is a simple implementation of HttpStream.  It assumes it is
+// not sharing a sharing with any other HttpStreams, therefore it just reads and
+// writes directly to the Http Stream.
+
+#ifndef NET_HTTP_HTTP_BASIC_STREAM_H_
+#define NET_HTTP_HTTP_BASIC_STREAM_H_
+
+#include "base/basictypes.h"
+#include "net/base/client_socket_handle.h"
+#include "net/http/http_stream.h"
+
+namespace net {
+
+class HttpBasicStream : public HttpStream {
+ public:
+  explicit HttpBasicStream(ClientSocketHandle* handle) : handle_(handle) {}
+  virtual ~HttpBasicStream() {}
+
+  // HttpStream methods:
+  virtual int Read(IOBuffer* buf,
+                   int buf_len,
+                   CompletionCallback* callback) {
+    return handle_->socket()->Read(buf, buf_len, callback);
+  }
+
+  virtual int Write(IOBuffer* buf,
+                    int buf_len,
+                    CompletionCallback* callback) {
+    return handle_->socket()->Write(buf, buf_len, callback);
+  }
+
+ private:
+  ClientSocketHandle* const handle_;
+
+  DISALLOW_COPY_AND_ASSIGN(HttpBasicStream);
+};
+
+}  // namespace net
+
+#endif  // NET_HTTP_HTTP_BASIC_STREAM_H_