Update AutoImport to import nothing by default (in absence of policy and master_prefs).

chrome/installer/util/master_preferences.h

Index: chrome/installer/util/master_preferences.h
diff --git a/chrome/installer/util/master_preferences.h b/chrome/installer/util/master_preferences.h
index 61582943a5d7d07ac08fbb4b4454b46c6530f7d7..1eadf29eda4090dd51feb77ecd0526fbba4682d0 100644
--- a/chrome/installer/util/master_preferences.h
+++ b/chrome/installer/util/master_preferences.h
@@ -39,11 +39,7 @@ const char kDefaultMasterPrefs[] = "master_preferences";
 //   "distribution": {
 //      "create_all_shortcuts": true,
 //      "do_not_launch_chrome": false,
-//      "import_bookmarks": false,
 //      "import_bookmarks_from_file": "c:\\path",
-//      "import_history": false,
-//      "import_home_page": false,
-//      "import_search_engine": true,
 //      "make_chrome_default": false,
 //      "make_chrome_default_for_user": true,
 //      "ping_delay": 40,
@@ -65,7 +61,13 @@ const char kDefaultMasterPrefs[] = "master_preferences";
 //      "https://igoogle.com"
 //   ],
 //   "homepage": "http://example.org",
-//   "homepage_is_newtabpage": false
+//   "homepage_is_newtabpage": false,
+//   "import_autofill_form_data": false,
+//   "import_bookmarks": false,
+//   "import_history": false,
+//   "import_home_page": false,
+//   "import_saved_passwords": false,
+//   "import_search_engine": false
 // }
 //
 // A reserved "distribution" entry in the file is used to group related