diff --git a/src/net/spdy/spdy_header_block.cc b/src/net/spdy/spdy_header_block.cc
new file mode 100644
index 0000000..3680cb4
--- /dev/null
+++ b/src/net/spdy/spdy_header_block.cc
@@ -0,0 +1,51 @@
+// Copyright (c) 2012 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_header_block.h"
+
+#include "base/values.h"
+
+namespace net {
+
+Value* SpdyHeaderBlockNetLogCallback(
+    const SpdyHeaderBlock* headers,
+    NetLog::LogLevel /* log_level */) {
+  DictionaryValue* dict = new DictionaryValue();
+  DictionaryValue* headers_dict = new DictionaryValue();
+  for (SpdyHeaderBlock::const_iterator it = headers->begin();
+       it != headers->end(); ++it) {
+    headers_dict->SetWithoutPathExpansion(
+        it->first, new StringValue(it->second));
+  }
+  dict->Set("headers", headers_dict);
+  return dict;
+}
+
+bool SpdyHeaderBlockFromNetLogParam(
+    const base::Value* event_param,
+    SpdyHeaderBlock* headers) {
+  headers->clear();
+
+  const base::DictionaryValue* dict = NULL;
+  const base::DictionaryValue* header_dict = NULL;
+
+  if (!event_param ||
+      !event_param->GetAsDictionary(&dict) ||
+      !dict->GetDictionary("headers", &header_dict)) {
+    return false;
+  }
+
+  for (base::DictionaryValue::key_iterator it = header_dict->begin_keys();
+       it != header_dict->end_keys();
+       ++it) {
+    std::string value;
+    if (!header_dict->GetString(*it, &(*headers)[*it])) {
+      headers->clear();
+      return false;
+    }
+  }
+  return true;
+}
+
+}  // namespace net