Reduce the amount of included header files. Vast change like in "Oh God! This...

net/url_request/url_request_unittest.cc

 // Copyright (c) 2006-2008 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/url_request/url_request_unittest.h"
 
 #include "build/build_config.h"
 
 #if defined(OS_WIN)
 #include <windows.h>
@@ skipping 11 matching lines @@
 #include "base/string_piece.h"
 #include "base/string_util.h"
 #include "net/base/load_flags.h"
 #include "net/base/net_errors.h"
 #include "net/base/net_module.h"
 #include "net/base/net_util.h"
 #include "net/base/ssl_test_util.h"
 #include "net/disk_cache/disk_cache.h"
 #include "net/http/http_cache.h"
 #include "net/http/http_network_layer.h"
+#include "net/http/http_response_headers.h"
 #include "net/proxy/proxy_service.h"
 #include "net/url_request/url_request.h"
 #include "testing/gtest/include/gtest/gtest.h"
 #include "testing/platform_test.h"
 
 using base::Time;
 
 namespace {
 
 class URLRequestHttpCacheContext : public URLRequestContext {
@@ skipping 1042 matching lines @@
     int64 file_size = 0;
     file_util::GetFileSize(app_path, &file_size);
 
     EXPECT_TRUE(!r.is_pending());
     EXPECT_EQ(1, d.response_started_count());
     EXPECT_FALSE(d.received_data_before_response());
     EXPECT_EQ(d.bytes_received(), 0);
   }
 }