Persist offline page info in a navigation entry if needed

chrome/browser/BUILD.gn

 # 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.
 
 import("//build/config/chrome_build.gni")
 import("//build/config/crypto.gni")
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//build/split_static_library.gni")
 import("//chrome/common/features.gni")
@@ skipping 3063 matching lines @@
       "android/offline_pages/background_scheduler_bridge.cc",
       "android/offline_pages/background_scheduler_bridge.h",
       "android/offline_pages/downloads/offline_page_download_bridge.cc",
       "android/offline_pages/downloads/offline_page_download_bridge.h",
       "android/offline_pages/downloads/offline_page_notification_bridge.cc",
       "android/offline_pages/downloads/offline_page_notification_bridge.h",
       "android/offline_pages/offline_page_bookmark_observer.cc",
       "android/offline_pages/offline_page_bookmark_observer.h",
       "android/offline_pages/offline_page_bridge.cc",
       "android/offline_pages/offline_page_bridge.h",
+      "android/offline_pages/offline_page_info_handler.cc",
+      "android/offline_pages/offline_page_info_handler.h",
       "android/offline_pages/offline_page_mhtml_archiver.cc",
       "android/offline_pages/offline_page_mhtml_archiver.h",
       "android/offline_pages/offline_page_model_factory.cc",
       "android/offline_pages/offline_page_model_factory.h",
       "android/offline_pages/offline_page_request_interceptor.cc",
       "android/offline_pages/offline_page_request_interceptor.h",
       "android/offline_pages/offline_page_request_job.cc",
       "android/offline_pages/offline_page_request_job.h",
       "android/offline_pages/offline_page_tab_helper.cc",
       "android/offline_pages/offline_page_tab_helper.h",
@@ skipping 1146 matching lines @@
   # linking all of the test support.
   static_library("pepper_cdm_test_constants") {
     testonly = true
     visibility = [ "//chrome/*" ]
     sources = [
       "media/pepper_cdm_test_constants.cc",
       "media/pepper_cdm_test_constants.h",
     ]
   }
 }