Fix bug where Navigation Timing reports negative load time when redirecting to

chrome/chrome_tests.gypi

 # 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.
 
 {
   'variables' : {
     'pyautolib_sources': [
       'app/chrome_command_ids.h',
       'app/chrome_dll_resource.h',
       'common/automation_constants.h',
@@ skipping 687 matching lines @@
         'browser/download/save_page_uitest.cc',
         'browser/default_plugin_uitest.cc',
         'browser/fast_shutdown_uitest.cc',
         'browser/history/multipart_uitest.cc',
         'browser/history/redirect_uitest.cc',
         'browser/iframe_uitest.cc',
         'browser/images_uitest.cc',
         'browser/locale_tests_uitest.cc',
         'browser/media_uitest.cc',
         'browser/metrics/metrics_service_uitest.cc',
+        'browser/net/load_timing_observer_uitest.cc',
         'browser/prefs/pref_service_uitest.cc',
         'browser/printing/printing_layout_uitest.cc',
         'browser/process_singleton_linux_uitest.cc',
         'browser/process_singleton_uitest.cc',
         'browser/repost_form_warning_uitest.cc',
         'browser/sanity_uitest.cc',
         'browser/session_history_uitest.cc',
         'browser/sessions/session_restore_uitest.cc',
         'browser/tab_contents/view_source_uitest.cc',
         'browser/tab_restore_uitest.cc',
@@ skipping 3390 matching lines @@
               # Use outputs of this action as inputs for the main target build.
               # Seems as a misnomer but makes this happy on Linux (scons).
               'process_outputs_as_sources': 1,
             },
           ],  # 'actions'
         },
       ]
     }],  # 'coverage!=0'
   ],  # 'conditions'
 }