Revert "Clean up dns prefetch code, and also port it."

chrome/test/unit/unit_tests.scons

 # 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.
 
 Import('env')
 
 env = env.Clone()
 
 env.SConscript([
     '$BASE_DIR/gfx/using_base_gfx.scons',
@@ skipping 299 matching lines @@
 
       '$CHROME_DIR/browser/chrome_thread_unittest.cc',
       '$CHROME_DIR/browser/extensions/extension_unittest.cc',
       '$CHROME_DIR/browser/extensions/extensions_service_unittest.cc',
       '$CHROME_DIR/browser/history/history_types_unittest.cc',
       '$CHROME_DIR/browser/history/snippet_unittest.cc',
       '$CHROME_DIR/browser/history/text_database_unittest.cc',
       '$CHROME_DIR/browser/history/visit_tracker_unittest.cc',
       '$CHROME_DIR/browser/metrics/metrics_response_unittest.cc',
       '$CHROME_DIR/browser/net/dns_host_info_unittest.cc',
-      '$CHROME_DIR/browser/net/dns_master_unittest.cc',
       '$CHROME_DIR/browser/net/url_fetcher_unittest.cc',
       '$CHROME_DIR/browser/printing/page_range_unittest.cc',
       '$CHROME_DIR/browser/printing/page_setup_unittest.cc',
       '$CHROME_DIR/browser/printing/units_unittest.cc',
       '$CHROME_DIR/browser/safe_browsing/bloom_filter_unittest.cc',
       '$CHROME_DIR/browser/safe_browsing/chunk_range_unittest.cc',
       '$CHROME_DIR/browser/safe_browsing/protocol_parser_unittest.cc',
       '$CHROME_DIR/browser/safe_browsing/safe_browsing_database_unittest.cc',
       '$CHROME_DIR/browser/safe_browsing/safe_browsing_util_unittest.cc',
       '$CHROME_DIR/browser/spellcheck_unittest.cc',
@@ skipping 60 matching lines @@
       '$CHROME_DIR/browser/history/history_backend_unittest.cc',
       '$CHROME_DIR/browser/history/history_querying_unittest.cc',
       '$CHROME_DIR/browser/history/history_unittest.cc',
       '$CHROME_DIR/browser/history/starred_url_database_unittest.cc',
       '$CHROME_DIR/browser/importer/firefox_importer_unittest.cc',
       '$CHROME_DIR/browser/importer/importer_unittest.cc',
       '$CHROME_DIR/browser/login_prompt_unittest.cc',
       '$CHROME_DIR/browser/metrics/metrics_log_unittest.cc',
       '$CHROME_DIR/browser/renderer_host/render_widget_host_unittests.cc',
       '$CHROME_DIR/browser/navigation_controller_unittest.cc',
+      '$CHROME_DIR/browser/net/dns_master_unittest.cc',
       '$CHROME_DIR/browser/net/resolve_proxy_msg_helper_unittest.cc',
       '$CHROME_DIR/browser/password_manager/encryptor_unittest.cc',
       '$CHROME_DIR/browser/password_manager/password_form_manager_unittest.cc',
       '$CHROME_DIR/browser/printing/page_number_unittest.cc',
       '$CHROME_DIR/browser/printing/page_overlays_unittest.cc',
       '$CHROME_DIR/browser/printing/print_job_unittest.cc',
       '$CHROME_DIR/browser/printing/win_printing_context_unittest.cc',
       '$CHROME_DIR/browser/profile_manager_unittest.cc',
       '$CHROME_DIR/browser/renderer_host/resource_dispatcher_host_unittest.cc',
       '$CHROME_DIR/browser/rlz/rlz_unittest.cc',
@@ skipping 168 matching lines @@
                 '../../third_party/hunspell/using_hunspell.vsprops',
                 '../../../third_party/npapi/using_npapi.vsprops',
             ])
 
 p.AddFileConfig('../../tools/build/win/precompiled_wtl.cc',
                 'Debug|Win32',
                 tools=[
                     MSVSTool('VCCLCompilerTool',
                              UsePrecompiledHeader='1'),
                 ])