Add "Show saved copy" button in dino page when there's offline copy

chrome/chrome_common.gypi

 # Copyright (c) 2013 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': {
     # File lists shared with GN build.
     'chrome_common_sources': [
       'common/all_messages.h',
       'common/attrition_experiments.h',
@@ skipping 309 matching lines @@
         '<(DEPTH)/base/base.gyp:base_static',
         '<(DEPTH)/chrome/chrome_resources.gyp:chrome_resources',
         '<(DEPTH)/chrome/chrome_resources.gyp:chrome_strings',
         '<(DEPTH)/chrome/chrome_resources.gyp:theme_resources',
         '<(DEPTH)/chrome/common_constants.gyp:common_constants',
         '<(DEPTH)/chrome/common/variations/fieldtrial_testing_config.gyp:fieldtrial_testing_config',
         '<(DEPTH)/components/components.gyp:cloud_devices_common',
         '<(DEPTH)/components/components.gyp:component_updater',
         '<(DEPTH)/components/components.gyp:content_settings_core_common',
         '<(DEPTH)/components/components.gyp:crash_core_common',
+        '<(DEPTH)/components/components.gyp:error_page_common',
         '<(DEPTH)/components/components.gyp:favicon_base',
         '<(DEPTH)/components/components.gyp:gcm_driver_common',
         '<(DEPTH)/components/components.gyp:json_schema',
         '<(DEPTH)/components/components.gyp:metrics',
         '<(DEPTH)/components/components.gyp:metrics_net',
         '<(DEPTH)/components/components.gyp:omnibox_common',
         '<(DEPTH)/components/components.gyp:policy_component_common',
         '<(DEPTH)/components/components.gyp:translate_core_common',
         '<(DEPTH)/components/components.gyp:variations',
         '<(DEPTH)/components/components.gyp:version_info',
@@ skipping 304 matching lines @@
       'sources': [
         'common/resource_usage_reporter.mojom',
       ],
       'dependencies': [
         '../mojo/mojo_base.gyp:mojo_environment_chromium',
         '../third_party/mojo/mojo_public.gyp:mojo_cpp_bindings',
       ],
     },
   ],
 }