Added Net logging to FileStream.

net/base/file_stream_net_log_parameters.cc

+// Copyright (c) 2011 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/base/file_stream_net_log_parameters.h"
+
+#include "base/values.h"
+
+namespace net {
+
+FileStreamErrorParameters::FileStreamErrorParameters(
+    const std::string& operation,
+    int system_error_code)
+        : operation_(operation), system_error_code_(system_error_code) {
+}
+
+Value* FileStreamErrorParameters::ToValue() const {
+  DictionaryValue* dict = new DictionaryValue();
+
+  dict->SetString("operation", operation_);
+  dict->SetInteger("system_error_code", system_error_code_);
+
+  return dict;
+}
+
+}  // namespace net