Make NetLog take in callbacks that return Values

net/http/http_request_headers_unittest.cc

 // Copyright (c) 2010 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/http/http_request_headers.h"
 
+#include "base/values.h"
 #include "testing/gtest/include/gtest/gtest.h"
 
 namespace net {
 
 namespace {
 
 TEST(HttpRequestHeaders, HasHeader) {
   HttpRequestHeaders headers;
   headers.SetHeader("Foo", "bar");
   EXPECT_TRUE(headers.HasHeader("foo"));
@@ skipping 139 matching lines @@
   headers.SetHeader("A", "A");
   headers.SetHeader("B", "B");
 
   HttpRequestHeaders headers2;
   headers2.SetHeader("B", "b");
   headers2.SetHeader("C", "c");
   headers.CopyFrom(headers2);
   EXPECT_EQ("B: b\r\nC: c\r\n\r\n", headers.ToString());
 }
 
+TEST(HttpRequestHeaders, ToNetLogParamAndBackAgain) {
+  HttpRequestHeaders headers;
+  headers.SetHeader("B", "b");
+  headers.SetHeader("A", "a");
+  std::string request_line("GET /stuff");
+
+  scoped_ptr<base::Value> event_param(
+      headers.NetLogCallback(&request_line, NetLog::LOG_ALL_BUT_BYTES));
+  HttpRequestHeaders headers2;
+  std::string request_line2;
+
+  ASSERT_TRUE(HttpRequestHeaders::FromNetLogParam(event_param.get(),
+                                                  &headers2,
+                                                  &request_line2));
+  EXPECT_EQ(request_line, request_line2);
+  EXPECT_EQ("B: b\r\nA: a\r\n\r\n", headers2.ToString());
+}
+
 }  // namespace
 
 }  // namespace net