Add experiments info to crash dumps.

chrome/chrome_exe.gypi

 # 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.
 
 {
   'targets': [
     {
       'target_name': 'chrome',
       'type': 'executable',
       'mac_bundle': 1,
       'variables': {
         'use_system_xdg_utils%': 0,
         'enable_wexit_time_destructors': 1,
       },
       'sources': [
+        'app/breakpad_field_trial_win.cc',
+        'app/breakpad_field_trial_win.h',
         'app/breakpad_win.cc',
         'app/breakpad_win.h',
         'app/chrome_exe_main_aura.cc',
         'app/chrome_exe_main_gtk.cc',
         'app/chrome_exe_main_mac.cc',
         'app/chrome_exe_main_win.cc',
         'app/chrome_exe_resource.h',
         'app/client_util.cc',
         'app/client_util.h',
         'app/hard_error_handler_win.cc',
@@ skipping 527 matching lines @@
           'configurations': {
             'Common_Base': {
               'msvs_target_platform': 'x64',
             },
           },
         },
       ],
     }],
   ],
 }