Partially componentize chrome/common/crash_keys.

ios/chrome/ios_chrome.gyp

 # Copyright 2014 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': {
     'chromium_code': 1,
   },
   'targets': [
     {
@@ skipping 154 matching lines @@
         'browser/chrome_url_constants.cc',
         'browser/chrome_url_constants.h',
         'browser/chrome_url_util.h',
         'browser/chrome_url_util.mm',
         'browser/content_settings/cookie_settings_factory.cc',
         'browser/content_settings/cookie_settings_factory.h',
         'browser/crash_loop_detection_util.h',
         'browser/crash_loop_detection_util.mm',
         'browser/crash_report/breakpad_helper.h',
         'browser/crash_report/breakpad_helper.mm',
+        'browser/crash_report/crash_keys.cc',
+        'browser/crash_report/crash_keys.h',
         'browser/crash_report/crash_report_background_uploader.h',
         'browser/crash_report/crash_report_background_uploader.mm',
         'browser/crash_report/crash_report_multi_parameter.h',
         'browser/crash_report/crash_report_multi_parameter.mm',
         'browser/crash_report/crash_report_user_application_state.h',
         'browser/crash_report/crash_report_user_application_state.mm',
         'browser/crash_report/crash_upload_list.cc',
         'browser/crash_report/crash_upload_list.h',
         'browser/dom_distiller/distiller_viewer.cc',
         'browser/dom_distiller/distiller_viewer.h',
@@ skipping 360 matching lines @@
             '../../components/components.gyp:omnibox_browser',
             '../../components/components.gyp:rlz',
             '../../components/components.gyp:search_engines',
             '../../rlz/rlz.gyp:rlz_lib',
           ],
         },
       ],
     }],
   ],
 }