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

chrome/browser/chrome_browser_main.cc

 // Copyright (c) 2012 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.
 
 #include "chrome/browser/chrome_browser_main.h"
 
 #include <stddef.h>
 #include <stdint.h>
 
 #include <set>
@@ skipping 1657 matching lines @@
   // So make sure to create it before that.
   nacl::NaClBrowser::SetDelegate(base::MakeUnique<NaClBrowserDelegateImpl>(
       browser_process_->profile_manager()));
 #endif  // !defined(DISABLE_NACL)
 
   // TODO(stevenjb): Move WIN and MACOSX specific code to appropriate Parts.
   // (requires supporting early exit).
   PostProfileInit();
 
 #if !defined(OS_ANDROID) && !defined(OS_CHROMEOS)
-  // Show the First Run UI if this is the first time Chrome has been run on
-  // this computer, or we're being compelled to do so by a command line flag.
-  // Note that this be done _after_ the PrefService is initialized and all
-  // preferences are registered, since some of the code that the importer
-  // touches reads preferences.
+  // Execute first run specific code after the PrefService has been initialized
+  // and preferences have been registered since some of the import code depends
+  // on preferences.
   if (first_run::IsChromeFirstRun()) {
-    // By default Auto Import is performed on first run.
-    bool auto_import = true;
-
-#if defined(OS_WIN)
-    // Auto Import might be disabled via a field trial.  However, this field
-    // trial is not intended to affect enterprise users.
-    auto_import =
-        base::win::IsEnterpriseManaged() ||
-        !base::FeatureList::IsEnabled(features::kDisableFirstRunAutoImportWin);
-#endif  // defined(OS_WIN)
-
-    if (auto_import) {
-      first_run::AutoImport(profile_, master_prefs_->homepage_defined,
-                            master_prefs_->do_import_items,
-                            master_prefs_->dont_import_items,
-                            master_prefs_->import_bookmarks_path);
-    }
+    first_run::AutoImport(profile_, master_prefs_->import_bookmarks_path);
 
     // Note: this can pop the first run consent dialog on linux.
     first_run::DoPostImportTasks(profile_,
                                  master_prefs_->make_chrome_default_for_user);
 
     if (!master_prefs_->suppress_first_run_default_browser_prompt) {
       browser_creator_->set_show_main_browser_window(
           !chrome::ShowFirstRunDefaultBrowserPrompt(profile_));
     } else {
       browser_creator_->set_is_default_browser_dialog_suppressed(true);
@@ skipping 390 matching lines @@
   chromeos::CrosSettings::Shutdown();
 #endif  // defined(OS_CHROMEOS)
 #endif  // defined(OS_ANDROID)
 }
 
 // Public members:
 
 void ChromeBrowserMainParts::AddParts(ChromeBrowserMainExtraParts* parts) {
   chrome_extra_parts_.push_back(parts);
 }