Implement Android key/value backup

chrome/test/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/compiler/compiler.gni")
 import("//build/config/crypto.gni")
 import("//build/config/features.gni")
 import("//build/config/ui.gni")
 import("//chrome/common/features.gni")
@@ skipping 3037 matching lines @@
     "../browser/android/data_usage/data_use_ui_tab_model_unittest.cc",
     "../browser/android/data_usage/external_data_use_observer_unittest.cc",
     "../browser/android/data_usage/external_data_use_reporter_unittest.cc",
     "../browser/android/data_usage/tab_data_use_entry_unittest.cc",
     "../browser/android/download/download_manager_service_unittest.cc",
     "../browser/android/history_report/delta_file_backend_leveldb_unittest.cc",
     "../browser/android/history_report/delta_file_commons_unittest.cc",
     "../browser/android/history_report/usage_reports_buffer_backend_unittest.cc",
 
     # TODO(newt): move this to test_support_unit?
+    "../browser/android/chrome_backup_agent_unittest.cc",
     "../browser/android/mock_location_settings.cc",
     "../browser/android/mock_location_settings.h",
     "../browser/android/net/external_estimate_provider_android_unittest.cc",
     "../browser/android/preferences/pref_service_bridge_unittest.cc",
     "../browser/android/shortcut_info_unittest.cc",
     "../browser/android/thumbnail/scoped_ptr_expiring_cache_unittest.cc",
     "../browser/android/webapk/webapk_icon_hasher_unittest.cc",
     "../browser/android/webapk/webapk_installer_unittest.cc",
     "../browser/android/webapk/webapk_web_manifest_checker_unittest.cc",
     "../browser/android/webapps/add_to_homescreen_data_fetcher_unittest.cc",
@@ skipping 2031 matching lines @@
       "touch_hud",
       "ui",
     ]
 
     if (is_linux && !is_android) {
       deps += [ "//components/font_service:manifest" ]
       packaged_services += [ "font_service" ]
     }
   }
 }