Settings Router Refactor: Remove subpage-back.

chrome/browser/resources/settings/site_settings/compiled_resources2.gyp

 # Copyright 2016 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': 'add_site_dialog',
       'dependencies': [
         'site_settings_behavior',
       ],
@@ skipping 53 matching lines @@
       'dependencies': [
         '<(DEPTH)/ui/webui/resources/js/compiled_resources2.gyp:web_ui_listener_behavior',
         'cookie_tree_node',
         'site_settings_behavior',
       ],
       'includes': ['../../../../../third_party/closure_compiler/compile_js2.gypi'],
     },
     {
       'target_name': 'site_details',
       'dependencies': [
+        '../compiled_resources2.gyp:route',
         '<(DEPTH)/ui/webui/resources/js/compiled_resources2.gyp:assert',
         '<(DEPTH)/ui/webui/resources/js/compiled_resources2.gyp:cr',
         '<(DEPTH)/ui/webui/resources/js/compiled_resources2.gyp:load_time_data',
         '<(EXTERNS_GYP):settings_private',
         'constants',
         'site_settings_behavior',
         'site_details_permission',
         'website_usage_private_api',
       ],
       'includes': ['../../../../../third_party/closure_compiler/compile_js2.gypi'],
@@ skipping 62 matching lines @@
     {
       'target_name': 'website_usage_private_api',
       'dependencies': [
         '<(DEPTH)/ui/webui/resources/js/compiled_resources2.gyp:cr',
         '<(EXTERNS_GYP):chrome_send',
       ],
       'includes': ['../../../../../third_party/closure_compiler/compile_js2.gypi'],
     },
   ],
 }